Service Difficulty Advisories

These Service Difficulty Advisories brings to your attention a potential problem identified by the Service Difficulty Reporting Program. It is a non-mandatory notification and does not preclude issuance of an airworthiness directive.

Note:  All Service Difficulty Advisories issued after October 2010 will be called Civil Aviation Safety Alerts and will be found on the Civil Aviation Safety Alert Home page.

AV Date Subject PDF
2010-04 20 April 2010 Engine core cowl stay support strut/rod 337 KB
(1 min 43sec)
2010-03 18 March 2010 CESSNA 300/400 Series Main Landing Gear Malfunctions 47.5 KB
(6 sec)
2010-02 4 March 2010 Bombardier Inc. CL-600-2C10, CL-600-2D15 and CL-600-2D24 Aft Nose Landing Gear Door Upper Attachment Hinge Assemblies 157 KB
(50 sec)
2010-01 2 March 2010 Fuel Containing FAME (Fatty Acid Methyl Ester) 73.3 KB
(7 sec)
2009-06 8 December 2009 Kelowna Flightcraft - Convair 340/440 (580) model aircraft Fuel Crossfeed and Transfer 58 KB
(8 sec)
2009-05 30 September 2009 Inspection & Maintenance Guidelines for Flush-Mounted Fuel Caps 69 KB
(19 sec)
2009-04 29 September 2009 Canadair challenger CL-600-2A12, CL 600-2B16 series 601, 601-3A and 601-3R elevator cable vertical stabilizer area 188 KB
(53 sec)
2009-03 26 June 2009 Catalytic Oxidation of Aircraft Carbon Brakes due to Runway De-Icing (RDI) Fluids 34 KB
(9 sec)
2009-02 8 May 2009 Nacelle Bolt Migration DHC 8 100/200/300 64 KB
(18 sec)
2009-01 17 April 2009 PT6A Engines - Handling of External Engine Tubes and Fittings 113 KB
(32 sec)
2008-08 2 December 2008 Tire Failure - Locked Carbon Disc Brake Due to Moisture Absorption and Freezing 45KB
(15 sec)
2008-07 9 September 2008 Pratt & Whitney Canada PW500 Series Engines No. 4 Bearing - Carbon Seal Distress 29KB
(8 sec)
2008-06 15 August 2008 Teledyne Contental Engine Model A-65 Series 32.4KB
(10 sec)
2008-05 19 June 2008 Pratt & Whitney Canada PT 6A-65 & 67 Series Reduction Gearbox 1ST Stage Carrier Bolts Fractured 31KB
(10 sec)
2008-04 19 June 2008 Pratt & Whitney Canada JT15D-1 series Impeller Failures 31KB
(10 sec)
2008-03 28 May 2008

Fuel System Icing (Suspended Water In Fuel)

49KB
(13 sec)
2008-02 22 February 2008

Diamond DA20-C1 - IO-240 Fuel System Contamination

43KB
(15 sec)
2008-01 17 January 2008 DHC 8 Q400 Series Nose Landing Gear Door Spring 42KB
(15 sec)
2007-06 19 September 2007 PT6A - 114/114A Compressor Turbine Blades 43KB
(15 sec)
2007-05 29 October 2007 All PT6A Engines (#1 bearing) Electrical Discharge Damage (EDD) 43KB
(15 sec)
2007-04 22 August 2007

CESSNA 150, 172, and 175 Steering Tube (PN 0543022-XX) TSB Aviation Safety Information A02Q0160-D1-L1; Jammed Rudder Pedal

65KB
(20 sec)
2007-03R1 20 May 2009 Flexible Fuel Manifolds Pratt & Whitney Canada PW100 Series Engines 30 KB
(8 sec)
2007-03 9 February 2007 Flexible Fuel Manifolds Pratt &Whitney Canada PW100 Series Engines 38KB
(10 sec)
2007-02 1 February 2007 Pratt &Whitney R-985 Series Engines Cylinder Heads and Cylinder Flanges 68KB
(19 sec)
2007-01 25 January 2007 Aircraft Fuel Caps Being Found on Runway and Taxi Surfaces 124KB
(35 sec)
2006-08 22 September 2006 Pratt &Whitney Canada Engines Engine Oil Filler Cap Security 90KB
(37 sec)
2006-07 8 September 2006 Mitsubishi MU-2B - Combustor Plenums Cracked (Honeywell TPE 331-6-252M) 1279KB
(6 min 3 sec)
2006-06 5 July 2006 Pratt &Whitney Canada All PT6A Series Engines - Hot Section – Borescope Inspections 41KB
(11 sec)
2006-05 4 July 2006 Pratt and Whitney Canada PT6A-38, -40, -41, -41AG, -42, -42A, and -62, Series Engines Replacement of First Stage Sun Gear and Planet Gears at Overhaul 44KB
(12 sec)
2006-04 30 May 2006 De havilland Twin Otter DHC 6-300 - Nose Wheel Steering Collar Fracture 97KB
(26 sec)
2006-03 24 February 2006 Pratt & Whitney Canada PT6, PW100, PW150, JT15D, PW 200, PW300 and PW500 Engine Models Engine Condition Trend-Monitoring 12KB
(12 sec)
2006-02 24 February 2006 Cessna 182 - Inspection of EDO Float Installations 47KB
(13 sec)
2006-01 8 February 2006 Pratt & Whitney PW 100 Engine - Electrical System Care 255KB
(1 min 12 sec)
2005-02 12 April 2005 Pratt & Whitney Canada - PT6A-67D Series Engines (Installed on Raytheon Beech 1900D Aircraft) Possible Oil Contamination 47KB
(13 sec)
2005-01 6 April 2005 Honeywell (Garrett) TPE 331-10UA - Engine Oil Filter Housing Cracks 41KB
(11 sec)
2004-05 1 December 2004 Pratt & Whitney Canada - JT8D-17 Series Engine Compressor Failures 48KB
(13 sec)
2004-04 16 July 2004 Rolls Royce Corporation (RRC) 250 Series Engines - Engine Compressor Splined Adaptor Couplings 130KB
(36 sec)
2004-03 4 June 2004 De Havilland DHC-1 Chipmunk - Flight Control Cables 128KB
(36 sec)
2004-02 12 February 2004 Passenger Seat Belts Equipped With "D-Ring" Type Attachment Fittings 338KB
(1 min 36 sec)
2004-01 12 January 2004 Cessna 650 - Citation III Flight Control Cables 151KB
(42 sec)
2003-09 29 December 2003 Lycoming TIO-540 Series - Crankshaft Fatigue Cracks 95KB
(27 sec)
2003-08 11 December 2003 Chelton Flight Systems 120KB
(34 sec)
2003-07 28 November 2003 Swearingen SA226TC - Water Ingress During Heavy Rain 124KB
(35 sec)
2003-06 10 November 2003 Israel Industries Astra SPX Nosewheel Steering Bracket Failure 108KB
(30 sec)
2003-05 18 September 2003 Beech 1900D Hartzell Propeller HC-E4A-3I - Blade Retention Bearings 89KB
(25 sec)
2003-04 17 July 2003 Bell 222, 222B, 222U and 230 Tailboom Cracking 160KB
(45 sec)
2003-03 9 July 2003 BAE Jetstream Series 3100/3200 Dowty Rotol Propeller R333 - Damaged Piston Seals 99KB
(28 sec)
2003-02 19 July 2003 Piper PA28R 201, PA32R 301/T, PA44 180/T, PA46 310P/350P - Nose Landing Gear Down Assist Springs 126KB
(35 sec)
2003-01 18 February 2003 Beech A100 - Cracked Elevator Trailing Edge Splines 209KB
(59 sec)
2002-05 21 November 2002 Bell 206A/B Series Engine Compressor Damage 97KB
(27 sec)
2002-04 30 October 2002 Beech King Air Series Wing Attach Torque Procedure 122KB
(34 sec)
2002-03 17 June 2002 Voltage Regulators Installed on Cessna Single Engine Aircraft With 14-Volt Electrical Systems 145KB
(41 sec)
2002-02 16 January 2002 Turbine Governor Spring - Honeywell Allison Models 250-C18, -C20, -C28, -C30 (Including -C30R and -C30R/1), -C20R, -B15, -B17, and -B17F Series Engines 122KB
(34 sec)
2002-01 11 January 2002 Aeroshell Oil Recall 153KB
(43 sec)
2001-06 8 November
2001
Generator Failure Warning Light 119 KB

2001-05 16 October 2001 Cessna 188, A188, and T188 (AGWAGON) - Corrosion of Rudder Pedal Arms and Torque Tubes 418KB
(1 min 58 sec)
2001-04 16 July 2001 Aerospatiale as 350/355 Series - Tail Rotor Pitch Change Spider 122KB
(34 sec)
2001-03 28 March 2001 Hughes 369D Collective Bungee Support Bracket 136KB
(38 sec)
2001-02 5 March 2001 Aerospatiale as 350/355 Series - Tail Rotor Blade Cracks 188KB
(33 sec)
2001-01 10 January 2001 Hamilton Sundtrand 14SF-5 and 14SF-7 Propellers - Cracked Blade Retaining Rings 120KB
(34 sec)
2000-06 6 December 2000 Cessna 150 &152 - Vertical Fin Attachment Bracket Cracking 162KB
(46 sec)
2000-05 5 October 2000 Cessna 172/180/185 - Aileron Control Column Sprockets 292KB
(1 min 23 sec)
2000-04 17 August 2000 Airbus A330 - Burnt Power Supply 119KB
(33 sec)
2000-03 5 June 2000 Aviadesign STC SA4013WE (Beech 99, King Air, Queen Air & Swearinggen SA26) - Main Landing Gear Collapse 124KB
(35 sec)
2000-02 24 March 2000 Mitsubishi MU-2B - Gear-up Landing 170KB
(48 sec)
2000-01 31 January 2000 Mcdonnell Douglas (Hughes) 369 Series 0 Flight in Falling Snow - Optional Engine Air Inlet Deflector 123KB
(34 sec)
1999-06 22 September 1999 De Havilland DHC 8300 Series - Emergency Exit Type I Door 150KB
(42 sec)
1999-05 11 August 1999 Piper PA34 - Tunnel Bracket 161KB
(45 sec)
1999-04 22 July 1999 Allison 250-C18 &-C20 Series - Sundstrand Dual Element Fuel Pump Part Number 024731 124KB
(35 sec)
1999-03R1 14 January 2000 Bell 206 Series - Craked Frame 158KB
(44 sec)
1999-03 15 July 1999 Bell 206 Series - Cracked Frame 139KB
(39 sec)
1999-02 7 July 1999 Bell 206 Series Helicopters - Cracked Pitch Link Nuts 135KB
(38 sec)
1999-01 7 July 1999 Rolls-Royce Dart & Spey - Silver Plating - Fuel Pumps 122KB
(34 sec)
1998-01 17 April 1998 Textron Lycoming 320 & 360 Series Engines - Crankshaft Inspection 132KB
(37 sec)
1997-01 10 December 1997 Eurocopter 350 Series - Fuel Control Lever Guard 115KB
(32 sec)
1990-06 14 January 2008 Allison 250-C Series Engines Loose “B” Nuts 41KB
(11 sec)

Service Difficulty Advisories are available in Portable Document Format and may be viewed using version 3.0 or higher of the Adobe® Acrobat Reader. This reader may be downloaded free of charge by visiting the Adobe® web site, or contact your LAN administrator if you require assistance with the installation of the Adobe Reader.

Continuing Airworthiness

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