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7. Part V - Airworthiness Manual Chapter 525 - Transport Category Aeroplanes - Table of Contents
8. Part V - Airworthiness Manual Chapter 525 - Transport Category Aeroplanes

Part V - Airworthiness Manual Chapter 525 - Transport Category Aeroplanes

Canadian Aviation Regulations (CARs) 2011-2

Content last revised: 2010/12/01

Preamble

SUBCHAPTERS 

• A (525.1-525.2), 
• B (525.21-525.255), 
• C (525.301-525.581), 
• D (525.601-525.899), 
• E (525.901-525.1207), 
• F (525.1301-525.1461), 
• G (525.1501-525.1587)
• H (525.1701-525.1733)

APPENDICES 

A, B, C, D, E, F, G, H, I, J, L, M, N

(2001/06/01; no previous version)

Preamble

General

The content of this chapter is based on the United States Code of Federal Regulations, Title 14, Chapter I, Part 25 entitled, Airworthiness Standards, Transport Category Airplanes. These United States airworthiness standards have been used and adopted as the model for the Canadian standards supplemented by additional airworthiness requirements based on Canadian experience and required for Canadian aviation purposes.

The FAR numbering system is used. The Canadian standards bears the same number as the FAR equivalent, prefixed by the number "5", as this chapter contains the standards for Part V of the Canadian Aviation Regulations (CARs).

The standards in this chapter are presented in a two column format with the United States FAR in the left column and the Canadian standards in the right column. Chapters, sub-chapters, sections and subsections numbering and headings are opposite to the equivalent FAR. Where the Canadian standard is identical to the FAR, the words "No Variation" appear; where a variation exists, the affected part of text is printed opposite to the FAR with all changes underlined.

The first issue of this chapter is based on FAR Part 25, up to and including amendment 25-59. In addition to administrative changes (e.g., Administrator = Minister; Part = Chapter) and the deletion of references to operating FARs, the Canadian variations included in this edition are as follows:

Stall Demonstration: characteristics generated by automatic systems, section 525.201, paragraph (d)(1).
Stall Warning: section 525.207, paragraph (b)
Lift and Drag Devices: in-flight controls operation, section 525.697, paragraph (b).
Life and Drag Devices, Indicator: section 525.699 paragraph (d).
Emergency Evacuation: the requirements of section 525.803, para (b) have been relocated to section 525.807 paragraph (c)(6)(ii) and (c)(6)(iii) for clarity.
Passenger Emergency Exits: exits in excess of the minimum required number, section 525.807, paragraph (c)(6).
Aeroplane Operations after Ground Cold Soak: section 525.1301-1.
Miscellaneous Marking and Placards: use of metric units, section 525.1557, paragraph (b)(3).
Aeroplane Flight Manual: section 525.1581: use of metric units para (e), and reference to operating rules, paragraph (f).

In addition, the following Airworthiness Manual Advisories (AMA) are attached to this chapter.

AMA 500C/1	Aircraft Equipment Incorporating Digital Computer Technology, dated 1 May 1986.
AMA 500C/2	Multipurpose Electronic Flight Deck Display Systems, dated 1 May 1986.
AMA 500C/3	Fire Protection - Ignition Sources, dated 1 May 1986.
AMA 500C/4	Portable Fire Extinguishers For Use In Aircraft, dated 1 May 1986.
AMA 500C/5A	Aircraft Operations After Ground Cold Soak, dated 1 May 1986.
AMA 525/1	Stalls, Compliance, dated 1 May 1986.
AMA 525.671	Aeroplane Flight Control System Failure Analysis, dated 1 May 1986.
AMA 525.697	Lift and Drag Devices, Controls and Indicators, dated 1 May 1986.
AMA 525.933	Thrust Reversing Systems, Turbo-Jet Engines, dated 1 May 1986.
AMA 525.1091	Engine Ingestion of Water/Slush Due to Runway Conditions, dated 1 May 1986.
AMA 525.1191	Firewalls - Criteria for Fireproofing, dated 1 May 1986.
AMA 525.1309	Aeroplane Equipment, Systems, and Installation Probability Analysis, dated 1 May 1986.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter 1, Part 25, effective in Canada on the dates specified herein:

Amendments 25-60 and 25-61 to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25 published in the Federal Register dated 16 May 1986 and 21 July 1986 respectively; and

A new Canadian airworthiness standards which allows conditional use of rated take-off power or thrust up to 10 minutes in case of OEI climb; Section 525.1521, para (b)(6).

In addition, the publication of the following new or revised advisory material:

AMA 500C/4A	Portable Fire Extinguishers for Use in Aircraft, dated 25 March 1987.
AMA 525.1521	Conditional Use of Rated Take-Off Power/Thrust Up to 10 Minutes For one-Engine- Inoperative Climb Operation, dated 1 January 1987.
AMA 525.1581	Aeroplane Flight Manual, dated 1 January 1987.

Note: In 525-1 changes were identified by marginal black lines. In future, changes will be identified by brackets [ ]; editorial alterations and typographical corrections will not be identified.

This Change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Amendment 25-62 "Standards for Approval of an Automatic Take-off Thrust Control System (ATTCS)", which provides newly developed standards (previously special conditions) for the installation of an ATTCS. The amendment specifies maximum thrust limits, prescribes system reliability and system status monitoring and promulgates details of manual selection of maximum approved take-off thrust. The amendment is based on special conditions developed for the Boeing 727 and Douglas DC-9 ATTCS designs.

Amendment 25-63 "Standards Governing the Noise Certification of Aircraft", which revises certain noise certification requirements which makes the associated regulations more manageable. Hence the noise test procedures are simplified, the equipment specifications are updated to better accommodate the use of current digital technology and the number of flight tests required to approve relatively minor aircraft modifications is reduced.

Amendment 25-64 "Improved Seat Safety Standards", which upgrades the standards for occupant protection during emergency landing conditions (i.e. static load factors in the upward, downward and sideward direction with an aft direction requirement added). Seat restraint requirements were revised and impact injury criteria were defined based on research testing and service experience.

Amendment 25-65 "Cockpit Voice Recorders and Flight Data Recorders", which amends flight data recorder and cockpit voice recorder regulations to provide more information to accident investigators. Generally, the requirements and parameters for flight recorders are upgraded to the level of the most sophisticated systems available; the use of digital recording equipment will henceforth become the norm. Additionally, uninterrupted sound recording will be required in cockpit voice recorders.

Amendment 25-66 "Improved Flammability Standards for Materials Used in the Interiors of Transport Category Airplane Cabins", which upgrades the fire safety standards for cabin interior materials by establishing refined fire test procedures (and apparatus) and a new requirement for smoke emission testing. The research conducted also determined that the reproducibility of test results would improve. Smoke emission testing is to reduce the possibility that emergency egress will be hampered by smoke obscuration.

This change also includes:

A correction to paragraph 525.145(a) to delete the reference to 525.49(c)(2)(i). this to correct an error published in the Federal Register, amendment 25-38 dated February 1, 1977, where the FAA deleted FAR section 25.49 without amending the cross reference contained in section 25.145 paragraph (a).

A Canadian rule change addressing the determination of take-off and landing performances for operation from unpaved runways. Sections 525.105 and 525.125 are amended by adding new paragraphs (c)(1) and (b) respectively.

Advisory material (AMA 525/4) providing guidance in demonstrating compliance with the requirements of the new paragraphs 525.105(c)(1) and 525.125(b).

The reissue of advisory material on the operation of thrust reversing systems following landing touch-down and selection of reverse thrust for turbine engine propeller aeroplanes. The new AMA 525/3 supersedes the original advisory (AMA 525.933) which addressed only turbojet thrust reversing systems.

The publication of the following new or revised advisory material:

AMA 500C/5A	Aircraft Operations After Ground Cold Soak, dated 25 March 1987.
AMA 525/3	Operation of Thrust Reversing Systems, dated 24 August 1988.
AMA 525/4	Operations From Unpaved Runways, dated 1 February 1988.

The rewriting of the original Introduction and Foreword in the form of Preamble.

This Change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Amendment 25-67 "Location of Passenger Emergency Exits in Transport Category Airplanes" which establishes a new standards that limits the distance between emergency exits on transport category aeroplanes to improve safe passenger evacuation during emergency.

Amendment 25-68. This amendment changes a cross reference to Part 91 in Appendix A of Part 25 and as such it is not applicable in Canada. This FAR change is part of a larger reorganisation of the general U.S. operating and flight rules to make them more understandable and easier to use.

Amendment 25-69 "Design Standards for Fuel Tank Access Covers" which requires that fuel tank access covers be designed to minimize penetration by likely foreign objects and be fire resistant.

Amendment 25-70 "Independent Power Source for Public Address System in Transport Category Airplanes" which intends to ensure the availability of the public address (PA) system during emergency conditions by requiring an independent PA system power source. This amendment applies only to aeroplanes that are required by operating rules to have a PA system.

Amendment 25-71 "Improved Structural Requirements for Pressurized Cabins and Compartments in Transport Category Airplanes" which upgrades the airworthiness standards for pressurised compartments. It requires evaluation of openings in any pressurised compartment and examination of the effects of differential pressure loads on any critical structure inside or outside the pressurised compartment.

Amendment 25-72 "Special Review: Transport Category Airplane Airworthiness Standards" is a comprehensive update of the standards for clarity and accuracy, and ensures that the standards are appropriate and practicable for smaller transport category aeroplanes.

Amendment 25-73 "Fuel Venting and Exhaust Emission Requirements for Turbine Engine Powered Airplanes" which requires compliance with the new Part 34. Part 34 consolidates all of the applicable aircraft engine fuel venting and exhaust emission requirements of SFAR 27-5, and the test procedures specified under the U.S. regulations implementing the Clear Air Act of the United States of America. In lieu of Part 34, Transport Canada has adopted the standards of Annex 16 to the Convention on International Civil Aviation, Volume II entitled "Aircraft Engine Emission," First Edition 1981, published by ICAO. Accordingly, sections 525.903 and 525.951 are amended to refer to Chapter 516, Second Edition, Subchapter B.

Amendment 25-74 "Airplane Cabin Fire Protection" which provides improved cabin fire protection for transport category aeroplanes by requiring smoke detector systems and automatic fire extinguishers in each lavatory of certain aircraft; an increased number of hand fire extinguishers in the passenger compartment and galleys; and a specified number of extinguishers containing Halon 1211.

This change also includes:

The revision of the previous Preambles for clarity and completeness;

The rewriting of section 525.1 to refer to the Air Regulation enabling the type approval of aeronautical products; and

Changes to four Canadian Variations effected by FAA amendment 25-72, as follows:

(1) The requirements for ventral, tail-cone and floor level emergency exits of paragraph 525.803(b) and 525.807(c)(6) were incorporated if the FAA text. Therefore, the Canadian text is deleted and the new text of Part 25 is adopted. The cross reference between the old and the new text is old 525.803(b) = new 525.803(b)(reserved); old 525.807(c)(6) = new 525.807(d)(6)(i)

(2) Paragraph 525.1521(b)(6) containing the requirement for the use of rated take-off power or thrust up to 10 minute, is renumbered as paragraph 525.1521(e) and a new introductory sentence is added.

(3) Paragraph 525.1557(b)(3) containing the requirement for placards and markings at powerplant fuel openings is renumbered as 525.1557(b)(4)

The publication of the following new or revised advisory material:

AMA 500C/5B, "Aircraft Operation after Ground Cold Soak" dated March 2, 1990;
AMA 500C/6, "Lightning Protection of Aircraft Fuel System" dated Oct. 27, 1989.
AMA 500C/8, "Composite Aircraft Structures" dated Jan. 8, 1991.
and the cancellation of AMA 525.1309, which is replaced by FAA AC 25.1309-1A.

This Change incorporates amendment 25-75 to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25, entitled "Landing Gear Aural Warning". This amendment requires that in Transport Category aeroplanes, when the landing gear is not locked down, the flight crew must be given an aural warning. This amendment intends to eliminate nuisance warnings and to simplify the certification process.

This Change also includes:

An amendment to section 525.1581 by adding a new paragraph (g). This amendment requires that the Aeroplane Flight Manual contain approved guidance material for procedures and performance information when operating from wet and contaminated runways; and

Editorial corrections.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Amendment 25-76 "Improved Access To Type III Exits" which establishes improved ability of occupants to evacuate an aircraft under emergency conditions.

Amendment 25-77 "Vibration Buffet And Aeroelastic Stability Requirements For Transport Category Airplanes", which clarifies the requirement to consider flutter and divergence when treating certain damage and failure conditions required by other sections of the FAR and adjusts the safety margins related to aeroelastic stability to make them more appropriate for the conditions to which they apply.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Amendment 25-78 "Use of Nitrogen or Other Inert Gas for Tire Inflation in Lieu of Air" to eliminate the possibility of tire explosion.

Amendment 25-79 "Emergency Evacuation Demonstration Procedures, Exit Handle Illumination Requirements and Public Address Systems".

The English version of this change also includes a correction to appendix F, Part I, paragraph (a)(1)(ii) to take care of an oversight during the incorporation of FAA amendment 25-70 published as change 525-3.

This change also includes:

The publication of advisory material AMA 525/10, Performance of Turbo Propeller Powered Large Aeroplanes used for Special Purpose Operations (Restricted Category), November 23, 1993

Editorial corrections

This change introduces a new format such as the removal of the left-hand column containing the FARs. The Canadian standards in this chapter are now presented in a newspaper column format with variations from the FARs underlined. The change number and date of affected pages has been removed from the bottom of the page. Instead, affected sections will be followed by change numbers and dates of current changes as well as any previous changes.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Amendment 25-80 "Electrical and Electronic Systems Lightning Protection" providing specific lightning protection requirements for electrical and electronic systems that perform essential or critical functions. The adoption of this FAR Amendment was object of NPA 94-08 dated 28 June 1994.

Amendment 25-81 "Design Standards for Airplane Jacking and Tie-Down Provision" intended to protect primary aeroplane structure during jacking operations and from gusty wind conditions while tied down. The adoption of this FAR Amendment was object of NPA 94-09 dated 28 June 1994.

Amendment 25-82 "Emergency Locator Transmitters" requires that newly installed emergency locator transmitters be of an improved design that meets the requirements of a revised TSO or later TSOs issued for ELTs. The adoption of this FAR Amendment was object of NPA 94-15 dated 25 October 1994.

Amendment 25-83 "Improved Flammability Standards for Material Used in the Interiors of Transport Category Aeroplane Cabins" intended to clarify standards adopted by FAA in 1986 concerning the flammability of components used in the cabins of certain transport category aeroplanes. The adoption of this FAR Amendment was object of NPA 95-05 dated 17 October 1996.

Amendment 25-84 "Revision of Certain Flight Airworthiness Standards to Harmonize with European Airworthiness Standards for Transport Category Aircraft" proposes to amend Chapter 525 to harmonize certain flight requirements with the European Joint Aviation Requirements 25. The adoption of this FAR Amendment was object of NPA 95-08 dated 17 October 1996.

Amendment 25-85:

Information Note:

Amendment 25-85, "Revision of Authority Citation" was not adopted as it dealt with the recodification of the US Federal Aviation Act of 1958 and is therefore not applicable.

This change also includes:

The publication of the following new or revised advisory material:

AMA 500C/8A	Composite Aircraft Structure, dated 1 September 1996
AMA 500/9	Standards For The Design And Installation of Aircraft Skis, dated 1 September 1996
AMA 525/2	Flight In Icing Conditions - Performance, dated 1 September 1996
AMA 525/5	Flight In Icing Conditions - Flight Characteristics, dated 1 September 1996
AMA 525/7	Controllability During Approach And Landing VMCL, Considerations, dated 1 September 1996
AMA 525/8	Performance Credit For Use of Power And Propeller Blade Pitch During Accelerate Stop and Landing Ground Roll, dated 1 September 1996
AMA 525/11	Flight Characteristics with Lateral Centre of Gravity, dated 1 September 1996
AMA 525.1581/2	Computerised Aeroplane Flight Manual Performance Systems, dated 1 September 1996

The cancellation of AMA 500C/1, that is superseded by FAA AC 20-115B.

The cancellation of Canadian variation 525.201(d) (1) due to the incorporation of FAR Amendment 25-84. (NPA 85-08)

Second Edition

Change 525-8

1. General

This change introduces a new format such as the removal of the left-hand column containing the FARs. The Canadian standards in this chapter are now presented in a full-page format. Canadian variations from the FARs are underlined with the FAR text following in a shaded box. The change number and date of affected pages has been removed from the bottom of the page. Instead, affected sections will be followed by change numbers and dates of current changes as well as any previous changes.

With the incorporation of this change, the entire chapter, including all the associated advisory material (AMAs), is republished in a Second Edition. The chapter is presented in a new format common to the versions made available on the Internet and CD Rom.

2. FAR Amendments

This change incorporates the technical standards contained in the following amendments to the United States Code of Federal Regulations, Title 14, Chapter 1, Part 25, for which Notices of Proposed Amendments (NPAs) were issued to solicit industry comments on their adoption by reference.

These NPAs were issued under the simplified procedure for the amendment of the design standards of the Airworthiness Manual, approved by the Civil Aviation Regulatory Committee on October 15, 1997, and are noted in the following FAR amendment description.

This Amendment entitled "Revised Discrete Gust Load Design Requirements" replaces the current discrete gust requirement with a new requirement for a discrete tuned gust; modifies the method of establishing the design airspeed for maximum gust intensity; and provides for an operational rough airspeed. These changes also provide for harmonization with the Joint Aviation Requirements (JAR) of Europe. (NPA 97-167).

This Amendment entitled "Standards for Approval for High Altitude Operation of Subsonic Transport Airplanes" specifies aeroplane and equipment airworthiness standards for subsonic transport aeroplanes to be operated up to an altitude of 51,000 feet. (NPA 97-167).

Information Note:

FAA Advisory Circular 25-20, "Pressurization, Ventilation and Oxygen Systems Assessment for Subsonic Flight including High Altitude Operation" has been accepted as guidance material on methods of compliance with the requirements introduced by Amendment 25-87.

This Amendment entitled "Type and Number of Passenger Emergency Exits Required in Transport Category Airplanes" defines two new types of passenger emergency exits in transport category aeroplanes, provides more consistent standards with respect to the passenger seating allowed for each exit type and combination of exit types, and requires escape slides to be erected in less time. These changes allow more flexibililty in the design of emergency exits and reflect recent improvements in escape slide technology. It will also enable more cost-effective emergency exit arrangements and, in the case of escape slides, enable more rapid egress of passengers under emergency conditions. (NPA 97-167).

This Amendment entitled "Allowable Carbon Dioxide Concentration in Transport Category Airplane Cabins" revises the standards for maximum allowable carbon dioxide (CO2) concentration in occupied areas of transport category aeroplanes by reducing the maximum allowable concentration from 3 percent to 0.5 percent. (NPA 97-167).

Information Note:

Amendment 25-90 "Operating Requirements: Domestic...etc." revises the FAR 121 operating rule cited in FAR 25.1303(b)(4). The equivalent provision in Chapter 525 currently makes general, rather than specific, reference to the applicable Canadian operating rules. This amendment does not require a change in Chapter 525.

This Amendment entitled "Revised Structural Loads Requirements for Transport Category Airplanes" introduces changes intended to achieve a common airworthiness standards and language between the requirements of the Federal Aviation Regulations and the Joint Aviation Requirements of Europe while maintaining at least the level of safety provided by the current regulations and industry practices. (NPA 97-450).

This Amendment entitled "Improved Standards for Determining Rejected Takeoff and Landing". This amendment amends the airworthiness standards for transport category aeroplanes to revise the methods for taking into account the time needed for the pilot to accomplish the procedures for a rejected take-off; require that take-off performance be determined for wet runways; and require that rejected take-off and landing stopping distances be based on worn brakes. (NPA 98-125).

Due to the incorporation of this amendment the Canadian variation 525.1581(g) is amended by deleting reference to wet runways. (NPA 2000-98).

This Amendment entitled "Revised Standards for Cargo or Baggage Compartments in Transport Category Airplanes" upgrades the fire safety standards for cargo or baggage compartments in certain transport category aeroplanes by eliminating Class D compartments as an option for future type certification. Compartments that can no longer be designated as Class D must meet the standards for Class C or Class E compartments, as applicable. (NPA 98-126).

Information Note:

FAA Amendment 25-93 was issued together with Amendment 121-269, which addressed the retrofitting of the existing fleet. Equivalent requirements for retrofitting the Canadian fleet have been addressed by NPA 98-163 and 98-164 for publication in CAR Part VII.

This Amendment corrects a number of errors in the safety standards for transport category aeroplanes. None of the changes are substantive in nature, and none will impose any additional burden on any person. (NPA 98-127).

This Amendment entitled "Airworthiness Standards; Rain and Hail Ingestion Standards" establishes revisions to the Federal Aviation Administration’s certification standards for rain and hail ingestion for aircraft turbine engines. This amendment addresses engine power-loss and instability phenomena attributed to operation in extreme rain or hail that are not adequately addressed by current requirements. This amendment also generally harmonizes these standards with rain and hail ingestion standards being amended by the Joint Aviation Authorities (JAA). These amendments establish nearly uniform standards for engines certified in the United States under 14 CFR part 33 and in the JAA countries under Joint Airworthiness Requirements-Engines (JAR-E), thereby simplifying the certification of engine designs by the FAA and the JAA. (NPA 98-159).

This Amendment entitled "Fatigue Evluation of Structure" amends the fatigue requirements for damage-tolerant structure on transport category aeroplanes to require a demonstration using sufficient full-scale fatigue test evidence that widespread multiple-site damage will not occur within the design service goal of the aeroplane; and inspection thresholds for certain types of structure based on crack growth from likely initial defects. This change is needed to ensure the continued airworthiness of structures designed to the current damage tolerance requirements, and to ensure that should serious fatigue damage occur within the design service goal of the aeroplane, the remaining structure can withstand loads that are likely to occur, without failure, until the damage is detected and repaired. (NPA 98-160).

This amendment entitled "Braked Roll Conditions" adds a new design standard that requires that the aeroplane be designed to withstand main landing gear maximum braking forces during ground operations. This amendment will ensure that the landing gear and fuselage are capable of withstanding the dynamic loads associated with the maximum dynamic braking condition. It also relieves a burden on industry by eliminating differences between the Federal Aviation Regulations (FAR) and European Joint Aviation Requirements (JAR), while maintaining a level of safety provided by the current regulations and industry practices. (NPA 98-176).

This action amends the airworthiness standards for transport category aeroplanes to revise the requirements concerning gated positions on the control used by the pilot to select the position of an aeroplane’s high-lift devices. This amendment updates the current standards to take into account the multiple configurations of the high-lift devices provided on current aeroplanes to perform landings and go-around maneuvers. This final rule also harmonizes these standards with those being adopted by the European Joint Aviation Authorities (JAA). (NPA 99-170).

3. CARAC Working Group

This amendment also implements the recommendations of CARAC Working Group 523-525

In 1996 the integration of the existing Design Standards of this Manual into the new Canadian Aviation Regulations (CARs), Part V was delayed as a result of a request by Canadian aviation industry to review these standards, in particular the Canadian variations, and all associated Canadian advisory material (AMAs) for their accuracy and appropriateness.

Due to the time-frame for CARs implementation, the CARAC Airworthiness Technical Committee V formed several Working Groups made up of industry and Transport Canada specialists to review those variations, AMAs and any applicable Special Conditions and make recommendations to the Committee for their disposition.

The final report of the 523/525 Working Group was completed in June 1997 and all its recommendations were accepted by the CARAC Technical Committee V. With the publication of this Change to Chapter 525, Transport Canada Civil Aviation, Aircraft Certification Branch, starts the implementation of those recommendations.

Therefore, this change includes:

(a) The amendment to Canadian variation 525.1581(g) as explained at FAR Amendment 25-92. (NPA 2000-98).

(b) The cancellation of the following Canadian variations effective on the date of publication of this change:

525.105(c)(1), and 525.125(b). (NPA 2000-95).
525.1581(e)(2) and (e)(3), and 525.1581(f). (NPA 2000-97).

(c) The publication of new or revised advisory material:

525/1A	Stalls, Compliance, dated 12 November 1999.
525/2A	Flight in Icing Conditions-Performance, dated 29 October 1999.
525/4A	Operations from Unpaved Runways, dated 2 September 1999.
525/5A	Flight in Icing Conditions-Flight Characteristics, dated 20 October 1999.
525/6A	Downwind Take-Off and Landing, dated 15 November 1999.
525/7A	Controllability During Approach And Landing VMCL, Considerations, dated 30 June 1999.
525/8A	Performance Credit for Use of Propeller Blade Pitch During Accelerate Stop and Landing Roll, dated 15 November 1999.
525/10A	Performance of Turbo-Prop Powered Large Aeroplanes Used for Special Purpose Operations (Restricted Category), dated 6 March 2000.
525/11A	Flight Characteristics with Lateral Center of Gravity, dated 12 November 1999.
525/12	Certification of Transport Category Aeroplanes On Narrow Runways , dated 19 November 1999.
525.671A	Aeroplane Flight Control System Failure Analysis, dated 14 July 2000.
525.1521A	Conditional Use of Rated Take-Off Power/Thrust, dated 14 July 2000.
525.1581A	Aeroplane Flight Manual, dated 12 November 1999.
525.1581/2A	Computerised Aeroplane Flight Manual Persormance Systems, dated 15 November 1999.
500C/3	Fire Protection - Ignition Sources, dated 1 May 1986.
500C/5B	Aircraft Operation After Ground Cold Soak, dated 2 March 1990.
500/8B	Composite Aircraft Structure, dated 8 November 1999.
500/9A	Standards For The Design And Installation of Aircraft Skis, dated 29 October 1999.
500/11	Airworthiness Standards For The Design Of Aircraft Floats, dated 2 February 1998.
500/12	Carriage of Bulk Liquids in Aircraft, dated 7 April 2000

(d) The cancellation of the following advisory material:

500C/2    Multipurpose Electronic Flight Deck Display System, dated 1 May 1986.

500C/4A    Portable Fire Extinguishers For Use In Aircraft, dated 25 March 1987.

In sections 525.812(h) and 525.1411 (c) cross references to 525.809(f) and (h) have been corrected to 525.810. (NPA 2000-96).

In FAR amendment 25-72, that was incorporated in this chapter at change 525-3, the requirements of 25.809 (f) and (h) were relocated in the new section 25.810. Due to an administrative oversight, the FAA did not correct the cross references in 25.812(h) and 25.1411 (c). In this change, Transport Canada is rectifying this error for applicability in Canada. FAA was advised and they will issue a correction to FAR 25.

4. Miscellaneous Changes

This change also includes editorial corrections, including editorial corrections to the Preamble at Change 525-7 and the update of cross references to CARs (e.g. 523.1).

Due to the consolidation of all regulatory requirements previously found in the Air Regulations and Air Navigation Orders into the new Canadian Aviation Regulations, administrative changes are included in this amendment to update the regulatory references and terminology (e.g. Type Certificate instead of Type Approval).

This Special Amendment 525-8.1 incorporates enhanced aircraft security design standards in support of amended regulations in CAR 705.80 required in the wake of the September 11, 2001 terrorist attacks and the issuance of SFAR 92-3 by the FAA.

This amendment entitled "Security Considerations in the Design of the Flightdeck on Transport Category Airplanes" was introduced using NPA 2002-017 and NPA 2002-018 adoption by reference without consultation pursuant to subsection 103.04(1) of the Canadian Aviation Regulations. These NPAs define new design standards with respect to emergency means to enable a flight attendant to enter the flight deck in the event the flight crew becomes incapacitated (525.772) and, intrusion and penetration resistance to pilot compartment doors (525.795).

This Special Amendment is introduced by NPA 2003-123 pursuant to subsection 103.04(1) of the Canadian Aviation Regulations (CARs). This NPA adds the reference to subsection 701.30(1) of the Canadian Aviation Regulations in section 525.795 of the Airworthiness Manual. Subsection 701.30(1) of the CARs, which has been amended simultaneously, requires foreign air operators to comply with the enhanced aircraft security design standards for flight deck doors.

1. General

This change introduces a new amendment format. This new amendment format is introduced in Chapter 525 of the Airworthiness Manual in order to be more consistent with the administrative procedures followed to amend the Canadian Aviation Regulations (CARs).

The following changes to the amendment procedures are introduced in this Change 525-9:

• the preamble will be the focal point regarding the sections affected by this change. The change number will no longer be provided at the end of an amended section. Rather, for the current change only, the amended text will be followed by an amendment tag identifying the coming into force date of the provision.
  (example: (amended 2003/06/01)).
• brackets "[ ]" will no longer be used to identify new or revised text. On the paper version, new or revised text will be highlighted. In the electronic version, new or revised text will not be highlighted, but followed by an electronic link to the previous version of the modified text. (example: (amended 2003/06/01; previous version))
• the preamble will include tables of change information. These tables will include the Notices of Proposed Amendments (NPAs) with the corresponding amended sections.

2. FAR Amendments

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Information Note:

This amendment for Special Retroactive Requirements was not adopted using the simplified process for the amendment of the design standards of airworthiness by adopting by reference a foreign amendment. A Notice of proposed amendment was developed and presented to the CARAC Technical Committee Part V where it was recommended for acceptance. See section 3 "CARAC Recommendations" NPA 2000-241 for further information on this FAR amendment.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2000-264	525.903 (Please note that the publication of this amended section has been deferred.) 525.1091

This amendment revised the bird ingestion type certification standards for aircraft turbine engines to better address the actual bird threat encountered in service. This amendment also establishes nearly uniform bird ingestion standards for aircraft turbine engines certified by the United States under FAA standards and by the Joint Aviation Authorities (JAA) countries under JAA standards, thereby simplifying airworthiness approval for import and export. The adoption of this final rule harmonizes Canadian standards with FARs and JARs.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-004	525.1183

This amendment revises the airworthiness standards for transport category aeroplanes to establish a new requirement for fire protection of powerplant installations and requires that components within a designated fire zone must be fireproof if, when exposed to or damaged by fire, they could pose a hazard to the aeroplane. Also, the adoption of this final rule will harmonize Canadian standards with FARs and JARs without affecting current industry design practices.

Information Note:

Amendment 25-102, entitled "Transport Airplane Fuel Tank Design Review, Flammability Reduction, and Maintenance and Inspection Requirements" is not included in this change issue. This amendment, effective as of 19 August 2002, will be published in the next change.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-251	525.473 525.723 525.725 525.727

This amendment revises the airworthiness standards for landing gear shock absorption test requirements for transport category aeroplanes by incorporating changes developed in cooperation with the U.S. Federal Aviation Administration (FAA), Joint Aviation Authorities (JAA) and the aviation industry through the Aviation Rulemaking Advisory Committee (ARAC). This amendment reduces the number of design wight conditions required to be demonstrated by shock absorption tests and changes the objective of the tests to include the complete validation of the landing gear dynamic characteristics. This amendment also removes some means of compliance criteria from the rule since it is more appropriately set forth in advisory material.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-254	525.1435

This amendment revises the hydraulic system design and test requirements of airworthiness standards for transport category aeroplanes. The amendment adds appropriate existing Joint Aviation Requirements (JAR) standards to achieve harmonization; moves some of the existing regulatory text to a new advisory circular (AC) 25.1435.1; consolidates and/or separates certain subparagraphs for clarity; and revises aeroplane static relief pressure. These revisions were developed in cooperation with Joint Aviation Authorities (JAA), Transport Canada, and the U.S. and European aviation industry through ARAC.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-255	525.1516 525.1527 525.1583 525.1585 525.1587

This amendment entitled "Revisions to Requirements Concerning Airplane Operating Limitations and the Content of Airplane Flight Manuals for Transport Category Airplanes" amends the airworthiness standards for transport category aeroplanes concerning aeroplane operating limitations and the content of aeroplane flight manuals. Issuing this amendment eliminates regulatory differences between the airworthiness standards of Canada, the U.S. and the Joint Aviation Authorities (JAA), without affecting current industry design practices.

Information Note:

This is a special amendment, published at Change 8.1, that incorporates enhanced aircraft security design standards in support of amended regulations in CAR 705.80 required in the wake of the September 11, 2001 terrorist attacks and the issuance of SFAR 92-3 by the Federal Aviation Administration (FAA).

3. CARAC Proposed Amendment Recommendations

This change implements the amendments to the standard recommended by the CARAC Technical Committee Part V.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-011	525.1581

Therefore, this change includes the amendment to Canadian variation 525.1581(e)(1). This amendment deletes the requirement to have the Système Internationale (SI) units of measurement in the aircraft manual.

Information Note:

FAR amendment 25-99 was presented as NPA 2000-241 to the Technical Committee. The NPA was reviewed at the September 6 and 7, 2000 meeting and was deferred at the November 16, 2000 meeting for further study and review accompanied with other NPAs that were drafted to deal with the Changed Product Rule (CPR). NPA 2000-241 was accepted at the November 16, 2000 meeting. The NPA will be published with the other related CPR NPAs when the CPR regulations will be implemented.

1. General

This change introduces the Changed Product Rule into Chapter 525 of the Airworthiness Manual (AWM).

These amendments are required to address the trend toward fewer aeronautical products that are of completely new design and more products with multiple changes to previously approved designs for existing aeronautical products. In common with those of other major regulatory regimes, Canadian airworthiness regulations have permitted an individual or organization that had responsibility for the type design or a change to the type design of an aeronautical product to change aspects of the design of the aeronautical product without updating the design of the entire product to the design standards current at the time of the application for the change to the type design. The result could be, and often was, a series of changes to a design, over time, no one of which constituted an extensive change from the immediately preceding design. The cumulative effect of the series of changes, however, could result in a very different version of the aeronautical product from that version to which the original type certificate, which approved the original design, referred. As a result, many changed aeronautical products have not been required to demonstrate compliance with all the recent airworthiness design standards. The changes to Canadian regulations form part of an international agreement with the U.S. Federal Aviation Administration (FAA) and the European Joint Aviation Authorities (JAA) to harmonize procedures for aeronautical product design and certification to prevent the continuation of this situation.

The following Changed Product Rule Notice of Proposed Amendment (NPA) was presented to the Aircraft Certification Technical Committee of the Canadian Aviation Regulation Advisory Council (CARAC):

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2001-241	525.2 (c)

• NPA 2000-241, which amended paragraph 525.2(c) to ensure that the new requirements for changes to type design that are introduced in Chapter 511 and 513 of the CARs will apply to Transport Category Aeroplanes. Compliance with subsequent revisions to the sections specified in paragraph (a) or (b) of section 525.2 of the AWM may be elected or may be required in accordance with subsection 511.13(1) and 513.07(1) of the CARs.
• This amendment harmonizes the text of Chapter 525 of the Airworthiness Manual with the corresponding text of FAR 25 section 25.2 as amended by FAR amendment 25-99.

In an effort to harmonize our regulatory guidance documents with those of other international aviation authorities and other branches within Transport Canada Civil Aviation (TCCA), the Aircraft Certification Branch has decided to replace existing Airworthiness Manual Advisories (AMA) related to certification of aeronautical products with new Advisory Circulars (AC). While the content of the new ACs will remain technically the same as the corresponding AMAs, which they will replace, the format of the ACs will be standardized to conform to other guidance documents published within the branch.

This change in guidance documentation becomes effective 1 December 2004 at which time the AMAs will be cancelled and replaced by their corresponding Advisory Circular concurrent with the next publishing of the Canadian Aviation Regulations (CAR). After this time, the CARAC Secretariat will no longer publish these AMAs and, consequently, ACs will not be published with their corresponding AWM Chapter. As of the 1 December 2004 issue of the CARs, any affected AMA references and content will have been removed. However, the AMA Index found in AMA 500/00 will, for now, continue to exist to provide a cross-reference between the old AMAs and the new ACs.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 27:

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2000-264 2003-256	525.903

NPA 2000-264 was written to adopt by reference Federal Aviation Regulation (FAR) amendment 25-100. The text of CAR Standard (Airworthiness Manual) paragraph 525.903(a)(2) in the NPA 2000-264 was erroneously written to include the term "and installation" in the opening statement of the subsection whereas the FAR text did not include this term. The contents of NPA 2003-256 supersede the contents of NPA 2000-264.

Additionally, the dates provided in subparagraphs 525.903(a)(2)(i), (ii) and (iii) of the current text are FAR effectives dates for respective section requirements. These FAR effective dates are not applicable in Canada. Consequently, the appropriate effective Canadian dates are provided to replace the FAR effective dates.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2002-043	525.981 H525.4

See Change 525-9 for information regarding these amendments.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2003-211	525.731 525.735

This amendment revises the braking systems design and test requirements of the airworthiness standards for transport category aeroplane. The amendment moves some of the existing regulatory text, considered to be of an advisory nature, to an advisory circular (FAA AC 25.735-1) and adds regulations addressing automatic brake systems, brake wear indicators, pressure release devices, and system compatibility. FAA AC 25.735-1 has been published April 10, 2002 and is acceptable for use in Canada.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2003-212	525.103 525.107 525.111 525.119 525.121 525.125 525.143 525.145 525.147 525.149 525.161 525.175	525.177 525.181 525.201 525.207 525.231 525.233 525.237 525.773 525.1001 525.1323 525.1325 525.1587

This amendment entitled "1-g Stall Speed as the basis for Compliance" amends the airworthiness standards for transport category aeroplanes to redefine the reference stall speed for transport category aeroplanes as a speed not less than the 1-g stall speed instead of the minimum speed obtained in a stalling manoeuvre. This amendment will provide a higher level of safety for those cases in which the current methods result in artificially low operating speeds.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2003-213	525.1323

This amendment entitled "Airspeed Indicating System Requirements for Transport Category Aeroplanes" amends the airworthiness standards for transport category aeroplanes concerning airspeed indicating system requirements. The amendment adds airspeed indication requirements for speeds greater than and less than the speed range for which airspeed indication accuracy requirements currently apply; a requirement that airspeed indications not cause the pilot undue difficulty between the initiation of rotation and the achievement of a steady climbing condition during takeoff, and a requirement to limit the effects airspeed lag.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2003-254	525.819

This amendment entitled "Lower Deck Service Compartment of Transport Category Aeroplanes" amends the airworthiness standards for transport category aeroplanes equipped with lower deck service compartments that are not certificated to be occupied during takeoff and landing. This amendment requires that two-way voice communication systems between lower and deck service compartments and flight deck remain available following loss of normal electrical power generating system, and seats installed in the lower deck compartment meet the requirements of AWM 525.785(d) instead of AWM 525.785(c).

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2004-028	525.856 Appendix F, Parts I, VI and VII

This Amendment entitled “Improved Flammability Standards for Thermal/Acoustic Insulation Materials Used in Transport Category Airplanes” revises the flammability standards for thermal and acoustic insulation materials. The revised standards include new flammability tests and criteria that address flame propagation and entry of an external fire into the aeroplane. This is necessary because the current standards do not realistically address situations in which thermal or acoustic insulation materials may contribute to the propagation of a fire. The revised standards intend to enhance safety by reducing the incidence and severity of cabin fires, particularly those in inaccessible areas where thermal and acoustic insulation materials are installed and also by providing additional time for evacuation by delaying the entry of external post crash fires into the cabin.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2003-255	525.613

This amendment entitled “Material strength properties and design values for transport aeroplanes” amends the airworthiness standards for transport category aeroplanes concerning material strength properties and design values requirements.  Issuing this amendment eliminates a regulatory difference between the airworthiness standards of Canada, the U.S. and Joint Aviation Authorities of Europe, without affecting current industry design practices.

This amendment revises the heading and paragraphs (b) and (d) to clarify that the design values are material design values. 

This amendment also requires consideration of environmental conditions in general, such as temperature and moisture, on material design values used in an essential component or structure, where those effects are significant in the aeroplane operating envelope.

This amendment removes paragraph (d) as fatigue is now adequately addressed in AWM 525.571 and adds paragraph (f), which permits the use of other design values if approved by the Minister.

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2004-041	525.869 525.1353 525.1431

This amendment amends the airworthiness standards for transport category aeroplanes concerning electrical equipment, nickel cadmium battery installation and storage, electrical cables, design and installation of electronic equipment and fire protection of electrical system components. Adoption of this amendment eliminates significant regulatory differences between the airworthiness standards of Canada, the U.S. and the Joint Aviation Authorities of Europe, without affecting current industry design practices.

This change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Table of Change Information
Notice of Proposed Amendment	Amended Sections
2006-005	525.783 525.807 525.809 525.810 525.820

This amendment entitled “Design Standards for Fuselage Doors on Transport Category Aeroplanes” changes the design standards for fuselage doors, hatches, and exits on transport category aeroplanes.  It provides design criteria that ensure doors remain secure under all circumstances that service experience has shown can happen.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2005-013	525.111 525.147 525.161 525.175 525.677 525.945 525.973 525.1141 525.1181 525.1305 525.1423 525.1439

This amendment entitled “Miscellaneous Flight Requirements; Powerplant Installation Requirements; Public Address System; Trim Systems and Protective Breathing Equipment; and Powerplant Controls” amends the airworthiness standards for transport category aeroplanes in each of these six areas.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2006-010	525.809 525.812 525.813 525.853 525.855 525.1411 525.1447

The amendment entitled “Miscellaneous Cabin Safety Changes” changes the airworthiness standards for transport category aeroplanes relating to flight attendant assist spaces and handles, door hold-open features, outside viewing means, interior compartment doors, and portable oxygen equipment.  These amendments are part of a continuing effort to upgrade the standards to improve the overall level of safety in areas where the state-of-the-art and good design practice have indicated that such upgrades are warranted.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2006-007	Appendix J

The amendment entitled “Revision of Emergency Evacuation Demonstration Procedures To Improve Participant Safety” amends the emergency evacuation demonstration procedures requirements for transport category aeroplanes to allow certain alternative procedures in conducting full-scale emergency evacuation demonstrations, reducing the possibility of injury to participants.

This change incorporates the following amendments based on the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

The amendment entitled “Aeroplane Flight Manual” amends the current AW

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2007-017	525.1581

M paragraph 525.1581(a)(3), which makes reference to AWM Chapter 516, 2nd Edition, whereas the 2nd Edition is no longer applicable for new aeronautical product approvals. The reference to 2nd Edition is thus deleted, meaning that the current change level of AWM 516 will be the applicable noise and emission standard. This change will allow this provision to remain harmonized with FAR Part 25.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2007-020	525.1329 525.1335

Proposed adoption by reference of FAR Amendment 25-119 dated May 11, 2006 and incorporation of the FAA Final Rule in Chapter 525 of the Airworthiness Manual.

The amendment entitled “Safety Standards for Flight Guidance System” amends the airworthiness standards for new designs and significant product changes for transport category aeroplanes concerning flight guidance systems. The standards address the performance, safety, failure protection, alerting, and basic annunciation of these systems. This amendment addresses flight guidance system vulnerabilities and consolidates and standardizes regulations for functions within those systems. In addition, this amendment updates the current standards regarding the latest technology and functionality. Adopting this amendment eliminates significant regulatory differences between Canadian, U.S. and European airworthiness standards.

1. Corrections (Ground Gust Conditions)

AWM 525.415(b) has been corrected with respect to the requirements provided in the table for values of “K” and “Position of Controls”.  Typographical errors appeared in the published version during transition to the CARs format at Change 525-7 as well as to the Internet and CD-ROM format at Change 525-8. AWM 525.415(b) remains a requirement with no variation as compared to §25.415(b) of the FAR, as has been the case since the First Edition of AWM Chapter 525, effective July 1, 1986.

2. FAR Amendments

This change incorporates the following amendment to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Information Note:

  FAR Amendment 25-120, entitled “Extended Operations (ETOPS) of Multi-Engine Airplanes” is not adopted in Canada at this time as.  TP 6327, Safety Criteria For Approval of Extended Range Twin-Engine Operations (ETOPS), is published by Transport Canada Safety and Security under the authority of the Director General, Civil Aviation by the Director, Commercial and Business Aviation in co-ordination with the Director, Aircraft Certification and the Director, Maintenance and Manufacturing.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2008-002	525.21 525.103 525.105 525.107 525.111 525.119 525.121 525.123 525.125 525.143 525.207 525.237 525.253 525.773 525.941 525.1419 Appendix C

This amendment entitled “Airplane Performance and Handling Qualities in Icing Conditions” introduces new airworthiness standards to evaluate the performance and handling characteristics of transport category aeroplanes in icing conditions. This action will improve the level of safety for new aeroplane designs when operating in icing conditions.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2008-003	525.1317 Appendix L

This amendment entitled “High-Intensity Radiated Fields (HIRF) Protection for Aircraft Electrical and Electronic Systems” revises the airworthiness standards for Transport Category Aeroplanes. This action is necessary due to the vulnerability of aircraft electrical and electronic systems and the increasing use of high-power radio frequency transmitters. It is intended to create a safer operating environment for civil aviation by protecting aircraft and their electrical and electronic systems from the adverse effects of HIRF.

This change incorporates the following amendment to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2008-013	525.611 525.855 525.869 525.899 525.1203 525.1301 525.1309 525.1310 525.1353 525.1357 525.1360 525.1362 525.1365 525.1703 525.1705 525.1707 525.1709 525.1711 525.1713 525.1715 525.1717 525.1719 525.1721 525.1723 525.1725 525.1727 525.1729 525.1731 525.1733 Appendix H

This Amendment entitled “Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/FTS)” amends the airworthiness standards for transport category aeroplanes. It ensures the continued safety of transport category aeroplanes by improving the design, installation and maintenance of aeroplane electrical wiring systems and align those requirements as closely as possible with the requirements for fuel tank system safety. This amendment organizes and clarifies design requirements for wire systems by moving existing regulatory references to wiring into a single subchapter of the Airworthiness Manual Chapter 525 specifically for wiring and by adding new certification standards.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2008-067	525.1457 525.1459

This Amendment entitled “Revisions to Cockpit Voice Recorder and Digital Flight Data Recorder Standards” amends cockpit voice recorder (CVR) and digital flight data recorder (DFDR) design standards. This amendment increases the duration of certain CVR recordings, requires physical separation of the DFDR and CVR, improves the reliability of the power supplies to both the CVR and DFDR, and requires that certain datalink communications received on an aircraft be recorded if datalink communication equipment is installed. This amendment is based on recommendations issued by the National Transportation Safety Board following its investigations of several accidents and incidents. These changes to CVR and DFDR systems are intended to improve the quality and quantity of information recorded, and increase the potential for retaining important information needed for accident and incident investigations.

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2008-164	525.981 Appendix M Appendix N

This Amendment entitled “Reduction of Fuel Tank Flammability” requires that the design should be such as to reduce the chances of a catastrophic fuel tank explosion. This amendment does not direct the adoption of specific inerting technology, but establishes a performance-based set of requirements that set acceptable flammability exposure values in tanks most prone to explosion or require the installation of an ignition mitigation means in an affected fuel tank. Technology now provides commercially feasible methods to accomplish this safety objective.

On December 1, 2009, Part V Subpart 21 of the Canadian Aviation Regulations (CAR 521) came into force. CAR 521 replaces the following Regulations in Part V - Airworthiness:

Subpart 11 - Approval of the Type Design of an Aeronautical Product
Subpart 13 - Approval of Modification and Repair Designs
Subpart 16 - Aircraft Emissions
Subpart 22 - Gliders and Powered Gliders
Subpart 23 - Normal, Utility, Aerobatic and Commuter Category Aeroplanes
Subpart 25 - Transport Category Aeroplanes
Subpart 27 - Normal Category Rotorcraft
Subpart 29 - Transport Category Rotorcraft
Subpart 31 - Manned Free Balloons
Subpart 33 - Aircraft Engines
Subpart 35 - Aircraft Propellers
Subpart 37 - Aircraft Appliances and Other Aeronautical Products
Subpart 41 - Airships
Subpart 51 - Aircraft Equipment
Subpart 91 - Service Difficulty Reporting
Subpart 93 - Airworthiness Directives

In addition, with publication of CAR 521, the following Chapters of the Airworthiness Manual have been withdrawn:

Chapter 511 - Approval of the Type Design of an Aeronautical Product
Chapter 513 - Approval of Modification and Repair Designs
Standard 591 - Service Difficulty Reporting
Standard 593 - Airworthiness Directives

This change amends sections 525.1 and 525.2 to reflect changes in legal drafting style, in terminology and in references required because of the introduction of CAR 521. In addition, subsection 521.31(1) of the CARs is now used to legally enable this Chapter of the AWM.

This Change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2009-013	525.901 525.905 525.907

This amendment entitled “Airworthiness Standards; Propellers” addressed advances in propeller technology of the past twenty years and not previously adequately addressed in the standards. The new standards address these advances in technology and harmonize Transport Canada Civil Aviation (TCCA), Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA) propeller certification requirements, thereby simplifying airworthiness approvals for imports and exports.  This amendment modifies 525.901(b), 525.905(c), 525.907(a) and (b), and adds 525.907(c).

This Change incorporates the following amendments to the United States Code of Federal Regulations, Title 14, Chapter I, Part 25:

Table of Change Information
Notice of Proposed Amendment	Amended Section(s)
2009-017	525.795

This amendment entitled “Security Related Considerations in the Design and Operation of Transport Category Aeroplanes” adopts several standards of the International Civil Aviation Organization (ICAO) and requires manufacturers to incorporate certain security features in the design of new transport category aeroplanes. Specifically, manufacturers of affected aeroplanes must design flight decks that are protected from penetration by projectiles and intrusion by unauthorized persons. The flight deck, passenger cabin and cargo compartments of these aeroplanes must be protected from the effects of detonation of an explosive or incendiary device. The rule also requires that manufacturers of new transport category aeroplanes design a “least risk bomb location” and that operators of certain existing aeroplanes designate such a location.

Date modified:

2012-01-23

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