Appendix R - Operations Manual Amendment Guide

MEL Defect Deferral Suggested Procedures
Disclaimer

This sample is provided to operators as a means of defect control.

It is not intended to be used as a guide or checklist for those air operators who have existing procedures that currently meet the intent of AWM 573 requirements.

The procedures developed below are specifically for a Company Operations Manual. These procedures should be identical to those found in the MCM and in the MEL.

MEL DEFECT DEFERRAL PROCEDURES

NOTE: Use of this MEL may not guarantee compliance with Regulations outside of Canada nor other procedures such as; Company Operation Specifications, ETOPs, RVSM, CAT II/III, etc.

1.1Defects and Their Control - General
  1. All defects will be entered in the aircraft Journey Log Book. (If applicable interior cosmetic defects may be entered in a Cabin Defect Log Book.)
  2. Prior to flight all defects shall be actioned and certified or deferred in accordance with the procedures set forth in the Company Operations Manual (COM), Maintenance Control Manual (MCM) and Minimum Equipment List (MEL).
  3. For each aircraft a defect will have a unique number assigned to it for tracking purposes.
1.2Deferred Defect Restrictions
  1. Any defect may be deferred provided it is included in the approved MEL and the aircraft must be operated in accordance with any conditions or limitations specified therein.
  2. Where the conditions or limitations specified in a MEL are in conflict with the requirements of an airworthiness directive, the airworthiness directive prevails.
  3. If any doubt exists as to the deferral of an item, consultation between operations and maintenance is required.
  4. Once a defect has been established as being deferrable by the restrictions set forth in Section 1.2 above, the following procedures will be used.
1.3Deferring Procedures and Control - Maintenance

If a defect has been deferred by the flight crew (Section 1.4) re-defer in accordance with the following.

  1. The defect will be entered in the Journey Log Book as "deferred in accordance with MEL ATA #..." and signed by a qualified AME.
  2. A placard will be placed in the aircraft as described by the MEL.
  3. The Journey Log must be checked to ensure that when operating with multiple inoperative items, the interrelationship between those items and the effect on aircraft operation and crew workload will be considered.
  4. The deferral will be tracked by Quality Assurance to ensure a timely rectification with regard to the categorization.
  5. After defect rectification, remove the placard from the aircraft and
    1. Follow the procedures in the MCM for placarding control.

      OR
    2. For multiple copy Journey Log, afix the placard to the maintenance copy of the defect rectification.

      OR
    3. For single copy bound type Journey Log, afix the placard adjacent the maintenance rectification.
  6. It is mandatory that all defects not cleared when the Journey Log Book expires be transferred to the new Journey Log Book with all details.
1.4Use of MEL - Flight Crew

Once a defect has been established as being deferrable by the restrictions set forth in Section 1.2, the Pilot-in-Command (PIC) may defer the defect in accordance with the MEL providing the following procedures are adhered to:

  1. The Pilot-in-Command will enter the defect in the Journey Log Book.
  2. The Pilot-in-Command will advise the Maintenance department as soon as practicable.
  3. Where required the flight crew will adhere to all column 4 restrictions and perform (O) procedures as applicable.
  4. (M) Maintenance Procedures may be actioned and deferred by Flight Crews who have been trained to do so under the authority of "Elementary Work".
  5. Flight Crews may not perform Maintenance procedures if the defect involves an item designated in the MEL as (M#) - which denotes MAINTENANCE PERSONNEL REQUIRED. The aircraft may not proceed until maintenance carries out the procedures found in Section 1.3.
  6. The Journey Log must be checked by the Pilot-in-Command for multiple inoperative items. The interrelationship between those items and the resultant effect on aircraft operation and crew workload will be considered by the PIC before making a go/no-go decision.
  7. Appropriate placard(s) will be installed by the flight crew in accordance with the instructions in the MEL.
  8. The Pilot-in-Command will enter in the Journey Log Book, adjacent to the defect, under what authority the defect has been deferred i.e. "deferred in accordance with MEL ATA Number...", the time of day, his/her signature and pilot's licence number.
  9. If any doubt exists, this does not preclude the pilot from consulting maintenance to confirm that the ATA item and procedure has been deferred correctly prior to subsequent dispatch.
  10. The aircraft may proceed on a planned itinerary to a base where maintenance will rectify or re-defer the defect in accordance with the procedures in the MCM.
1.5Journey Log Book Procedures

"O" and "M" Procedures

PRIOR TO EACH DEPARTURE:

Where an "O" and/or "M" Procedure is required PRIOR TO EACH DEPARTURE, the Pilot-in-Command will ensure all required actions are completed in accordance with the MEL.

PRIOR TO EACH FLIGHT DAY:

Where an "O" and/or "M" Procedure is required PRIOR TO EACH FLIGHT DAY, the Pilot-in-Command will ensure all required actions are completed in accordance with the MEL.

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