Feedback - Canadian Aviation Service Difficulty Reports

Air Canada’s first Airbus A220 was unveiled when it rolled out of the painting hangar at the A220 final assembly line in Mirabel in November 2019. Air Canada is the first Canadian airline to take delivery of this Canadian-designed and developed aircraft.

Feedback is a safety awareness communication for the aviation community. Subscribe to receive quarterly updates through e-news. 

The articles contained in Feedback are derived from Service Difficulty Reports (SDRs) submitted by Aircraft Maintenance Engineers (AMEs), owners, operators and other sources in accordance with Canadian Aviation Regulation (CAR) 521.

All defects or occurrences should be reported to Transport Canada through the Service Difficulty Reporting Program. For additional information about this program or concerning an article in Feedback, contact your nearest Transport Canada Centre.

For all technical inquires related to articles, please address your correspondence to TC.CAWWEBFEEDBACK-retroactionWebMDLN.TC@tc.gc.ca.

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Feedback articles

Feedback articles are created from submitted SDRs and are normally published verbatim. However, the content may be edited to increase comprehension and personal references may be deleted. Transport Canada assumes no responsibility for the accuracy of the content.

Issue dateSectionMakeModelSDR No.#Title
2026-09-22Fixed WingCessna525A20240708012Flap Actuator Rod End Failure – Corrosion
2026-09-22EngineAustro EngineE4P20250604001Turbo wastegate diaphragm leak - may lead to power loss
2026-08-31Fixed WingBoeing737 80020230301002Honeywell Wheel assembly tie bolt failures on B737-800
2026-08-31EngineAvco LycomingTIO-540-A2C20251118009Turbo Transition Assembly (Piper PA31 Series) – Cracked
2026-08-20RotocraftAirbusAS350 - AS35520251007013AS350/355 Heli-Utility-Basket Sheared Mounting Hardware
2026-08-20Fixed WingBombardierCL600 2D24 (RJ900)20230508010CRJ900 – Refuel-defuel valves internal leak due to missing seal
2026-06-02Heads upSpark ignited aviation gasoline reciprocating enginesAllN/APiston Engine Spark Plug Care and Insulator Cracking
2026-06-02Heads upVikingDHC-6-400A23F0272 Safety Investigation ReportImportance of Keeping Flight and Maintenance Manuals up to Date
2026-05-20Fixed WingPiperPA3120251112023Tail Pipe Assembly - Top - Risk of fire
2026-05-20RotorcraftBell Textron-CAN40720250929012Trakka TLX searchlight cracked retaining blocks
2026-05-20Fixed WingBeech20020210115029Momentary Chip Detection with Circuit Breaker Trip
2026-03-30Head’s upCollins AerospaceChemical Oxygen GeneratorN/ACollins Aerospace (B/E Aerospace Systems GmbH) - Chemical Oxygen Generator - Disposal and Reporting Failures
2026-03-30Fixed WingCessna525B20250303010Air Conditioning Compressor Motor Fan – Risk of fire
2026-03-23EnginePRATT & WHITNEY-CANPT6A-67R20230502015Cracked engine flange bolts
2026-03-23Fixed WingBOEING737-80020251002022B737-800 – Main Landing Gear (MLG) aft trunnion pin
2026-02-24EngineHoneywellAS907-2-1A20230410030Loose Bolts on Stator Housing Baffle
2026-02-24RotorcraftRobinsonR22 BETA II2023090100592R22 Brinelled Main Rotor Blade Spindle Bearing
2026-01-19Fixed WingEMBRAEREMB 54520230227023Small Screw – Big Issue
2026-01-19Head’s upPILATUSPC12 47E20230817014Trim Actuator – Backwards
2026-01-05Fixed wingEMBRAERERJ 170 200 SU20230524003Unexpected Fuel Tube Faults
2026-01-05Fixed WingMHI RJ AVIATIONCL600 2C10 (RJ700)20220719001Right Hand (RH) Main Landing Gear (MLG) forward trunnion bushing corrosion
2025-12-15Head’s UpSHORT & HARLANDSD3602019042700159SD3-60 Elevator Control Rod Broken
2025-12-15Fixed wingMHI RJ AVIATIONCL600 2D24 (RJ900)20221018004CRJ900 – Left cockpit window post cracked bracket
2025-12-08Head’s upBombardierCL600 2B19 (RJ100)20220627025RJ100 – Landing Gear axle corrosion
2025-12-08Fixed WingAerospatialeATR 42 50020210401017Loose ATR42 Engine Mount Bolts
2025-11-27Fixed WingCessnaU206F20250328015Nose Landing Gear Drag Link Bolt – Risk of collapse
2025-11-27Fixed WingBombardierCL215 6B11 (CL415)20250331018CL-415 External Power Receptacle Ground Lug Arcing Damage
2025-10-01Fixed WingPiperPA3020250214012Engine / Propeller Controls – Ball Joint Assembly Failure
2025-10-01EngineTeledyne ContinentalTSIO-520-NB20250109011Teledyne Continental TSIO-520-NB Cracked Piston Pin & Plug
2025-10-01EngineRolls-Royce - UKRB211-535E4-3720241120006Jammed Engine Control Cable
2025-10-01EnginePratt & Whitney-CANPW120A20240806017Propeller Overspeed Governor Pressure Sensing Tube Failure
2025-06-02EngineTeledyne ContinentalIO-520-F20231120007Engine Thru-Bolt Replacement at Overhaul
2025-06-02Fixed wingPiperPA31 35020250115012Hydraulic Filter Bowl Crack, Loss of Hydraulic Fluid – Necessitates Emergency Gear Extension
2025-04-28Fixed WingCessna68020241103004Emergency Exit Door Level 2/3 Corrosion
2025-04-28Heads upBoeing737 40620210617008B737-400 – Main battery ground wire problem
2025-03-27Heads upMHI RJ AviationCL600 2D24 (RJ900)20220211004RJ900- Pressure bulkhead with deep corrosion on lower angle
2025-03-27Fixed WingDiamond-CANDA 20 C120240919033Induction Air Hose Collapse
2025-02-26Fixed WingBombardierCL-600-2B16 (604)20230322002CL605 Potable water tank electric terminals missing insulating silicone
2025-02-26Heads upAirbus CanadaBD-500-1A1020211222027Improperly Crimped Terminal Lugs
2025-01-30Heads upMHI RJ AviationCL600 2C10 (RJ700)20210422001RJ700/900/1000 – Cockpit window posts cracking
2025-01-30Fixed WingPIPERPA31 35020241101011Aileron Control Cable Failure
2025-01-14RotorcraftBell Textron - USA412EP20230615002Fractured Transmission Oil Fitting
2024-10-02Heads upBombardierCL600 2B19 (RJ100)20210304004CRJ100/200 – Aft Cargo Door Fitting Cracked
2024-10-02Fixed WingDiamondAS, DA 4220231107010Jammed Rudder due to failed Rudder Steering Bracket
2024-10-02Fixed WingPiperPA44 18020231129027Emergency Exit Departs on Take-off
2024-09-04Heads UpCessna560N/AEngine Cowl Separation - Failure to verify engagement of quarter-turn fasteners
2024-09-04EnginePratt & Whitney CanadaPW207D220230502009Leaking Triple Function Switch
2024-05-02EnginePratt & Whitney CanadaPT6A-3420230713014Oil Filter Inner Mesh Cone
2024-05-02EnginePratt & Whitney CanadaPW150A20240102006Chafed Oil Scavenge Line
2024-05-02EngineTeledyne ContinentalTSIO-520-M20240123021Blocked Oil Vent Line
2024-05-02EnginePratt & Whitney CanadaPT6A-5020230518007Damaged Garlock Seal
2024-04-17Fixed wingMHI RJ AVIATIONCL600 2C10 (RJ700)20210210012RJ700 – Fuselage Skin Damage Due to Electrical Arcing
2024-04-17Fixed wingMHI RJ AVIATIONCL600 2D24 (RJ900)20200117004-
2020117007-
20201218008-
2020117010-
2020117012-
2020117022		CRJ 900 – Passenger Door Aft Fitting Cracks and Fitting Attachment Bolts Sheared
2024-04-04Head’s upBeech20020190604017Cracked Turnbuckle Body (Barrel) – MS21251 Series
2024-04-04Fixed wingAerospatialeATR 72 20220230628023ATR Flight Attendant Seat Lock
2024-04-04Fixed wingBeech20020220106019Landing Gear Torque Tube Taper Pin – Security of Attachment
2024-03-20Fixed wingPiperPA3020010523017Push-Pull Cable Seizure Leading to Gear Collapse
2024-03-20EngineCFM INTERNATIONALCFM56-7B26/E20230223003Improper Magnetic Chip Detector (MCD) Installation
2024-03-20EnginePratt & Whitney CanadaPW150A20230125017Scored Fuel Pump Transfer Tube Bores
2024-01-23Fixed WingDiamond - CanadaDA 20 A120231030030Rudder Pedal Frame Assembly Lower Mount Failure
2024-01-12Fixed WingAirbusA320 21420230214004Big Plane – Small Defect
2024-01-12EngineCFM INTERNATIONALCFM56-5B3/P20230104008Ruptured Fuel Line
2023-11-28Fixed WingBeechB30020230612012Low Pitch Solenoid and Uncommanded YAW
2023-11-28Fixed WingCessna75020200908017Right-Hand (RH) Main Landing Gear Retract Hose Failure
2023-11-16Fixed WingBombardierCL600 2B19 (RJ200ER)20210112003CRJ100/200 – Fuel Feed System Corrosion and Leaks
2023-11-16EnginePratt & Whitney-CanadaPW120A20220725001Cracked Fuel Drain Line
2023-11-16Fixed WingBeech1900D20230508015Deice Boot Inflation Failure Caused by Melting of Deice Line
2023-11-16Head’s upEmbraerERJ, 170 200 SU20230310001
20230410011
20230410013		Troubles with the In-Flight Entertainment System (IFE)
2023-09-08EngineAVCO LycomingO-320-H2AD20210707007Rocker Arm Failure
2023-09-08EngineTeledyne ContinentalO-470-R20220825011Teledyne Continental O-470-R Exhaust Valve Springs Broken
2023-09-08EnginePratt & Whitney CanadaPW306D20220309008Broken Thermocouple Harness
2023-09-08RotorcraftBell Textron - USA21220211005009Fractured Lug on the Swashplate Inner Ring
2023-09-08EngineTeledyne ContinentalIO-550-F20220822019Seized Magneto
2023-08-30RotorcraftBell Textron- Canada40720210512006Smoke in the Cockpit due to Air Conditioner System Fouling
2023-08-30RotorcraftRobinsonR442022612257152R44 Loose Tail Rotor Blade Tip
2023-08-04EngineWilliamsFJ44-3A20220810003Power Turbine Temperature Sensor and Electrical Connector
2023-07-26Fixed WingBeechA10020230210018Aging Aircraft – Electrical Cables and Connections
2023-07-26EnginePratt & Whitney-CanadaPW12320211129009Fuel Line Fitting Under-Torqued
2023-07-26Fixed WingBombardierBD 700 1A1120190912008Global 5000 Unintended Life Raft Deployment
2023-07-26Fixed WingEmbraerEMB 54520230410034Leaky Brake Control Valve
2023-03-24Fixed WingCessna172N20190311024Smoke in the Cabin – Landing Light Switch Failure
2023-03-24Fixed WingFairchildSA227AC20201007004Air Conditioning Cooling Turbine Failure
2023-03-24EnginePratt & Whitney-CanadaPT6A-2720220623027Corroded Starter Generator Drive Gear Shaft
2023-03-24EnginePratt & Whitney-CanadaPW210A20230119005Fuel Control Unit (FCU) Casting Defects
2023-03-24Fixed WingPilatusPC12 4520220922013PC 12 Main Landing Gear (MLG) Fracture and Collapse
2023-03-24RotorcraftBell Textron- Canada50520220706006Fuel Drain Tube Chafing
2023-03-24Fixed WingBeechB30020220808014Lower Forward Wing Attachment Bolt Corrosion
2023-03-24EnginePratt & Whitney-CanadaPT6A-2120230202005Propeller Governor Flyweight Bearings Insufficient Ball Retention
2022-12-13Fixed WingPilatusPC12 47E20220819005Pilatus PC 12 – Loose Anchor Nut – Rudder Hinge Attachment Bolt
2022-12-13Fixed WingLearjet4520220829024Environmental Control System (ECS) Muffler Cracked
2022-12-13RotorcraftBell Textron- Canada50520220216008Bell 505 Fractured Main Rotor Hub Bearing Roller
2022-12-13Fixed WingBeechB30020221026012Air Intake Anti-Ice Lip – Weld Assembly Engine Air Inlet Cracked
2022-12-13Fixed WingPiperPA44 18020210803019Main Landing Gear (MLG) Strut Assembly – Fork and Piston
2022-11-24RotorcraftBell Textron - Canada40720220328031Parts Manufacturing Approval (PMA) Tail Rotor Pitch Link for Bell 407
2022-11-24RotorcraftBell Textron - Canada42920210211015Worn Directional Control Idler Bearing
2022-11-24EnginesGeneral ElectricCT58-140-220210817009Broken P3 Air Line
2022-11-24Fixed WingPiperPA44 18020220822023Nose Landing Gear Centering Spring Bracket Installed Upside Down
2022-11-24Fixed WingDiamond - CanadaDA 20 C120220318008Elevator Control Horn Attachment Bolt – Worn Through Lower Skin
2022-11-24EnginesPratt & Whitney-USAPW1524G320220921006Fuel Check Valves
2022-08-31Heads upPilatusPC12 4720220215010PC 12 47 – Power Control Lever – Production Issue Advisory
2022-08-31Fixed WingPiperPA23 25020220411027Fuel Selector Valve Control Cable Failure at Swivel Fitting
2022-08-31Fixed WingSaab340B20220615008Nose Wheel Bearing Failure
2022-08-31Fixed WingCessna208B20210504027Main Wheel Thru-Bolt Failure
2022-08-31EnginesPratt & Whitney-CanadaPW127M20211001010Disconnected Fuel Line
2022-08-31Fixed WingAirbusA321 21120220330006Ground Crew Saves the Day
2022-08-31Fixed WingCanadairCL600 2B16
(601 3A)		20180904010Challenger 601-3A – Aging and Burnt Wiring on Pitch Trim System
2022-08-31Fixed WingDassaultFalcon 7X/8X20201204028Thrust Reverser Lower S-hook Bolt Loose/Disengaged
2022-08-31EnginesGeneral ElectricCF34-3B120220124011Engine Main Fuel Pump
2022-06-08Heads upBeech1900D20210903006Cabin Window Damage Due to Engine Exhaust
2022-06-08EnginesGeneral ElectricCF6-80C2B620201111012Main Engine Control Driveshaft Migration
2022-05-17Heads upBombardierCL600 2D24 (RJ900)20200127017RJ900 – Fuselage Stringer 20R Corrosion
2022-05-17Fixed WingBombardierCL600 2C10 (RJ700)20200818014CRJ 702 – Aileron Power Control Unit Attach Lug Broken
2022-05-17RotorcraftBell Textron - Canada42920210825042Bell 429 Non-Conforming Main Rotor Pitch Change Link Upper Retaining Bolt
2022-05-17Fixed WingCessna20820161215010Elevator Torque Tube Corrosion
2022-05-17EnginesPratt & Whitney - USAPW1500G20201013016Fuel Manifold Leak
2022-05-17Fixed WingBoeing767 37520210803013B767-300 - Cargo Loading Pallet Handling System Wiring Burnt
2022-05-17Fixed WingPiperPA28 16120160315001Main Landing Gear Stub Axle Lug Cracked
2022-05-17EnginesTeledyne ContinentalIO-550-N20201207020Incorrect Cylinder Assembly
2022-02-28EnginesHoneywellTFE731-20BR-1B20211102014Drive Splines and Interconnect Couplings Inspection
2022-02-28EnginesPratt & Whitney-CanadaPW150A20191010008Improper Generator Installation
2022-01-12EnginesAVCO LycomingO-320-H2AD20210923020MA-3 and MA-4 Series Carburetor – Liberated Accelerator Pump Discharge Tube
2022-01-12EnginesPratt & Whitney-CanadaPT6A-67P20200716009Leaking Propeller Shaft Seal
2021-11-15EnginesWilliamsFJ44-3A20210118032Electrical Connector Arcing
2021-10-20EnginesPratt & Whitney-CanadaPW127M20201127003Re-orientation of Bus-Bar Support Bracket Bolts
2021-09-14EnginesAVCO LycomingIO-540-K1B520210326007Continental Aerospace Technologies (Bendix / TCM) S-1200 Series Magneto Mounting Flange Loose
2021-09-14EnginesPratt & Whitney-CanadaPW305A20201005017New Bleed Valve Solenoid
2021-08-17EnginesPratt & Whitney-CanadaJT15D-4B20201215004Improper Igniter Cable Routing
2021-07-15EnginesPratt & Whitney-CanadaPW127M20210326013Fuel Nozzle Transfer Tube Missing O-Ring
2021-06-01EnginesRolls Royce - USA250-C300/A120190924001Compressor Bearing Housing Assembly Configuration
2021-05-25EnginesAVCO LycomingO-320-E2D20180925011Champion Aerospace Slick Magneto Loose or Broken Impulse Coupling Rivets
2021-05-25EnginesAVCO LycomingIO-540-K1G5D20210420010Filter Collapse-Pressure Failure
2021-05-05EnginesTurbomecaArrius 2R20190325024Engine Front Bearing Modification
2021-05-05EnginesGarrettTPE331-11U-61220201103021Damaged Gasket
2021-05-05EnginesGarrettTPE331-12UHR-702H20200911024Cracked Tachometer Generator Drive Adapter Inserts
2021-05-05EnginesRolls Royce - USA250-C47E/420201124011M250 Engine Series #5 Annular Ball Bearing
2021-05-05EnginesGarrettTPE331-11U-612G20200730008Cracked Engine Mount
2021-05-05EnginesGarrettTPE331-12UHR20200908013Idler Gear Bearing Failure
2021-03-03EnginesPratt & Whitney-CanadaPT6A-67F20200629030Seal Running Surfaces
2021-03-03EnginesTeledyne ContinentalTSIO-360-EB20200728009Sheared Rocker Arm Retaining Studs
2021-03-03EnginesTeledyne ContinentalTSIO-360-EB20201211009Throttle Body Missing Spacer
2021-01-27EnginesGeneral ElectricCF34-8E520200211018Cracked Fuel Pump Adapter
2021-01-27EnginesGeneral ElectricCF34-8C520200603001Chafed Fuel Line
2021-01-27EnginesPratt & Whitney-CanadaPT6A-67F20200623016Leaking Fuel Pump Drive Seal
2021-01-27EnginesPratt & Whitney-CanadaPT6A-67F20200707012Starter Generator Carbon Seal
2021-01-27EnginesPratt & Whitney-CanadaPW123B20201021003Fuel Control Unit Driveshaft Bushing
2020-12-02EnginesPratt & Whitney-CanadaPW150A20190524018Cracked Fuel Transfer Tube Bracket
2020-12-02EnginesGeneral ElectricCF34-3B120190813016Chafed Oil Fill Line
2020-12-02EnginesPratt & Whitney-CanadaPW150A20200212008Oil Pump Leak
2020-12-02EnginesPratt & Whitney-CanadaPW306D20170110013Fuel Filter Impending Bypass Switch
2020-12-02EnginesPratt & Whitney-CanadaPW150A20200320007Scavenge Oil Filter Leak
2018-07-01EnginesAllison250-C47B20160505004Engine Outer Combustion Case Cracked Fuel Nozzle Boss
2018-03-31EnginesAustro EngineE4A20170106003Engine Failure Due To Foreign Object Debris
2018-03-31EnginesAVCO LycomingIO-540-K1B520170404111Connecting Rod Bushing Failure
2017-09-19EnginesCFM InternationalCFM56-7B26/E20170217010Loss Of Oil Pressure Event
2017-03-31EnginesGarrettTPE331-10UA-511G20160926005Engine SOAP (spectrometric oil analysis program) Sample - A Proven Maintenance Tool
2017-07-19EnginesGarrettTPE331-1020170113010Incorrectly Set Turbine Rotor Rivets
2018-07-01EnginesGeneral ElectricCF6-80C2B7F20170614013Fuel Contamination Caused by Superabsorbent Polymers
2017-12-31EnginesGeneral ElectricCF34-3B120170315003Cracked Fan Blade Pins Causing High Engine Vibration
2017-04-13EnginesGeneral ElectricCF6-80C2B620160913005Engine failure due to liberated turbine nozzle
2019-12-18EnginesPratt & Whitney-CanadaPT6A-67D20170831016Cracked fuel line discovered after fuel seen in engine area
2019-12-18EnginesPratt & Whitney-CanadaPT6A-60A20171002008Commanded In-flight Shutdown Due to Miss-rigging
2018-03-31EnginesPratt & Whitney-CanadaPT6A-114A20170718006Missing or Forgotten Bracket Causes Engine Shutdown
2017-12-31EnginesPratt & Whitney-CanadaPW123B20170510013Fuel Leak Caused By Skydrol
2017-12-31EnginesPratt & Whitney-CanadaPW535A20170404036Incompatible Chemicals Causing Oil Leak
2017-09-19EnginesPratt & Whitney-CanadaPW123D20170315010Operation In Harsh Environments
2017-04-13EnginesPratt & Whitney-CanadaPT6A-114A20160323016Improper field adjustments leading to an un-commanded shutdown
2020-04-01EnginesPratt & Whitney-USAPW1524G20190328006Pinched O-Ring
2018-03-31EnginesPratt & Whitney-USAJT8D-1720170711020Engine Shutdown Due to Oil Loss from Loose Fitting
2018-07-01EnginesRolls Royce - USA250-C300/A120170424012Forgotten Plugs Found in Oil Holes
2020-07-07EnginesTeledyne ContinentalTSIO-360-EB120190521033Broken Cotter Pin
2018-07-01EnginesTeledyne ContinentalLTSIO-360-EB20170821016Connecting Rod Bolt Discrepancy
2018-03-31EnginesTeledyne ContinentalIO-240-B20170623009Corroded Weld on Oil Sump Causing Leak
2017-04-13EnginesTeledyne ContinentalIO-520-F20160608011Improperly Installed or Possible Missing Cotter Pin
2017-04-13EnginesTeledyne ContinentalIO-520-D20160408008Magneto Rotor Bushing Failure
2017-06-16EnginesTeledyne ContinentalIO-550-DN/AEngine Components International (ECI) Cylinder Malfunction
2022-02-28Fixed WingCessna150M20211202020Rudder Pedal Torque Tube Failure
2022-02-28Fixed WingPilatusPC12 47E20210707006Shocking Fuel Leak
2022-02-28Fixed WingBeech1900D20211127002Incorrect Fuel Filter Assembly Leading to Low Pressure Condition
2021-11-15Fixed WingCessna180J20211008015Cracked Engine Mount Tube
2021-10-29Fixed WingBeechA10020210917031King Air Horizontal Stabilizer Bracket Cracked
2021-10-20Fixed WingCessna208B20200930014Standby Alternator Drive Bearing Failure
2021-10-20Fixed WingBombardierCL600 2C10 (RJ700)20200110007RJ700 – Bleed Air Supply Duct Cracked at Welded Flange
2021-09-14Fixed WingBombardierCL600 2D24 (RJ900)20190930017Passenger Door Structure Found with Level 2 Corrosion
2021-06-01Fixed WingBoeing767 30620190814013, 20190822011, 20190903016Carbon Brake Failures/Premature Wear-Out
2021-05-25Fixed WingBombardierDHC 8 40020191115007Dash-8-400 Broken Aileron Cable
2021-05-05Fixed WingCessna208B20190410014Flap Follow-Up Arm Interference
2021-05-05Fixed WingBoeing737 2T2C20190808001B737-200C – Aft Passenger Door and Airstairs Hinge Breaks
2021-05-05Fixed WingCessna421C20210218007Emergency Exit – Corrosion and Window Cracking
2021-03-03Fixed WingAirbus CanadaBD 500 1A1120200525004The Importance of Following Instructions for Continued Airworthiness (ICA)
2021-03-03Fixed WingBeechB20020201026014Engine Fuel Purge Tank Failure
2021-01-27Fixed WingAirbusA330 34220190522023A330 - Broken Wheel Tie Bolts
2020-12-02Fixed WingCanadairCL600 2A12 (601)20151209013CL601 – Brake Control Valve (BCV) Loss of Braking due to Failure of Internal Spring
2020-12-02Fixed WingBombardierCL600 2B19 (RJ200)20180913013RJ200 Gear Down Disagree due to Broken Nose Gear Door Spring Bracket
2020-12-02Fixed WingBeechB300C20190925006Bent Rudder Horn Attachment Bolt
2020-12-02Fixed WingBombardierDHC 8 40220190909009Dash-8/400 Main Gear Axle Corrosion
2020-12-02Fixed WingBombardierDHC 8 40020190912001Dash-8-400 Tire Tread Separation
2020-12-02Fixed WingBeechB200GT20190807006Missing Nut at Elevator Bellcrank
2020-12-02Fixed WingCessna172B20180809019Cracked Plastic Control Wheel
2020-12-02Fixed WingAirbusA319 11420200226014Missing Wheel Assembly After Departure
2020-04-01Fixed WingAerospatialeATR 42 30020190403004Burnt Wiring on Fuel Probe
2019-12-18Fixed WingAerospatialeAS 35520180803011Cracked Hydraulic System Reservoir
2019-07-17Fixed WingAerospatialeATR 42 32020170711013Overhaul oversight leads to damaged landing gear component
2019-07-17Fixed WingAerospatialeATR 42 30020180723019Chafed wires result in smoky flight compartment
2019-07-17Fixed WingAerospatialeATR 42 30020180817016The importance of a thorough and attentive walk-around
2018-07-01Fixed WingAerospatialeATR 42 50020170607015Attentive Walk Around Leads to Abnormal Discovery
2018-07-01Fixed WingAerospatialeATR 72 20220170516007Mystery Bang Leads to Discovery of Severe Damage
2017-04-13Fixed WingAerospatialeATR 42 30020160517002Leaking Hydraulic Line
2020-07-07Fixed WingAirbusA321 21120190814001Loose External Receptacle Causes Hidden Fire
2020-04-01Fixed WingAirbusA319 11420170811002Improper Wire Routing Leads to Shocking Snag
2020-04-01Fixed WingBeechB30020181023015Aileron Balance Weight Cracked and Separated
2020-04-01Fixed WingBeechA10020130325018Rudder Pedal Failure
2020-04-01Fixed WingBeechB10020190516012Smoke in the Cabin
2017-04-13Fixed WingBeechA10020160128002External Power Terminal Strip
2020-07-07Fixed WingBoeing737 86J20190107009Burnt out Logo Light
2020-04-01Fixed WingBoeing737 820190225014Leaky Line
2019-12-18Fixed WingBoeing727 22520180816015Daily Inspection discovery
2019-12-18Fixed WingBoeing737 4Q820170822024Missing Cotter Pins
2018-09-10Fixed WingBoeing737 8CT20160203026Wheel assembly missing/broken tie bolts
2018-09-10Fixed WingBoeing737 8Q820170419007Loose metal found in brake assembly
2018-03-31Fixed WingBoeing757 2B720170518018Leaking Elevator Pressure Reducer By-pass Valve
2017-07-20Fixed WingBoeing767 33820160726005Aileron Power Control Actuator Rods Not In Safety
2020-07-07Fixed WingBombardierCL600 2D15 (705/900) - RJ90020171124012Windshield Heater Arcing at Terminal Block and Subsequent Window Cracking
2020-04-01Fixed WingBombardierBD 500 1A10/1A11 - CS100/30020180412003Damage Found on Left-Hand Main Landing Gear Upper Door
2020-04-01Fixed WingBombardierCL600 2B19 (RJ100) - CRJ 100/20020180514013Main Air Conditioning Duct Found Split and Leaking
2020-04-01Fixed WingBombardierBD 700 1A1020181221001Overheated Nickel-Cadmium (Ni-Cad) Battery
2020-04-01Fixed WingBombardierCL600 2B19 (CRJ 100SE)20171031004Cracked Right Hand (R/H) Aileron Mixer Support
2020-04-01Fixed WingBombardierCL600 2C10 (RJ700)20160418012Loss of Both Bleed Air Systems Causes Emergency Descent
2019-12-18Fixed WingBombardierCRJ 100/20020171005003Nose gear strut corrosion and pitting under steering collar
2019-12-18Fixed WingBombardierCL600 2D24 (RJ900), CL600 2D15 (RJ700)20160602006, 20160721044Generator feed cables found chafing in pylon area
2019-12-18Fixed WingBombardierBD 500 1A1120170918002#1 Engine driven hydraulic pump leak causes loss of system fluid
2019-12-18Fixed WingBombardierCRJ 100/200/44020170501008Rear Wing Spar Deep Corrosion
2019-08-13Fixed WingBombardierBD 500 1A1120171003009CSeries main landing gear door damage caused by loose fitting
2019-07-17Fixed WingBombardierCL600 2C10 (RJ700)20171002006Corrosion on floor support structure at door area
2019-07-17Fixed WingBombardierCL600 2E25 (RJ1000) - CRJ 100020171012001Elevator Power Control Unit (PCU) #1 has broken rod end
2018-09-10Fixed WingBombardierCL600 2D15 (705) - RJ 705/90020170724005Passenger Door Aft Latch Fitting Sheared Bolts
2018-09-10Fixed WingBombardierBD 700 1A1020171128015Global oxygen mask lanyard incorrectly installed
2018-07-01Fixed WingBombardierCL600 2D1520161219005Fuel Imbalance and Ejector Line Internal Crack
2018-03-31Fixed WingBombardierCL600 2C1020161128012Auxiliary Power Unit Mounting Strut Cracked
2017-12-31Fixed WingBombardierBD 700 1A1120161220017Belly Access Panel Missing
2017-12-31Fixed WingBombardierCL600 2D2420160628011Elevator Power Control Unit (PCU) Broken Rod End
2017-12-31Fixed WingBombardierCL600 2C10 (RJ700)20160210001, 20160202007, 20150630002Integrated Drive Generator power cable failures at terminal blocks (TBs)
2017-09-05Fixed WingBombardierCL600 2B19 (RJ100)20160803010, 20170403008, 20160928017Rudder Rod-Ends Seizing And Breaking
2017-04-13Fixed WingBombardierCL600 2B1920160503001Gear Side Stay Actuator Play
2017-07-19Fixed WingBombardierCL 601 series20160606002Tire Failure Event(s)
2018-03-31Fixed WingBombardierCL600 2D24 (RJ900)20161216017Rudder System - Power Control Unit Rod End Broken
2020-04-01Fixed WingCanadairCL600 2B19 (RJ100)20171122015Cockpit Windshield Arcing in Flight and Fire at Terminal Block
2020-04-01Fixed WingCanadairCL600 2B19 (RJ100) - RJ100/20020171031001Auxiliary Power Unit (APU) Inlet Duct Cracked
2020-04-01Fixed WingCessna20820190425034Cracked Lower Wing Strut Fitting
2020-04-01Fixed WingCessna172N20181015017Cessna 172 Fuel Selector Valve Inspection and Maintenance
2019-08-13Fixed WingCessna56020160713025Citation Fire Extinguisher Squib Test
2021-11-15Fixed WingPiaggioP180 Avanti II20160113002Loose Jam Nuts on Rudder Trim Actuator
2021-10-20Fixed WingPiperPA23 25020210302019PA23-250 Piper Aztec Emergency Exit Window Assembly
2021-01-27Fixed WingPiperPA44 18020200915012PA44-180 Throttle Cable Stuck at Cruise Setting
2021-01-27Fixed WingDiamond - CanadaDA 40 NG20191023011Engine Power Loss Due to Induction Coupling Disconnect
2020-12-02Fixed WingPiperPA31 35020190506013Gear up Landing due to Broken Hydraulic Line Flare
2020-12-02Fixed WingPilatusPC12 4520191227003No Steering Leads to Surprising Discovery
2020-12-02Fixed WingDiamondDA 4220200609020Engine Failure due to Crossed Fuel Lines
2020-04-01Fixed WingDassaultFALCON 900EX20170815003Falcon 900 - Main Wheel Found Missing After Landing
2020-07-07Fixed WingDe Havilland - CANDHC 8 30120181019011Failed Aileron Pulley Bearing
2020-04-01Fixed WingDe Havilland - CANDHC 8 31120181011008Jammed Elevator Trim
2020-04-01Fixed WingDe Havilland - CANDHC 6 30020150312008Aileron Servo Tab Control Rod Crack
2020-04-01Fixed WingDe Havilland - CANDHC 8 31120180913014Cracked Bleed Air Pipe Flange
2020-04-01Fixed WingDe Havilland - CAN DHC 8 40220190905009Damaged Fuel Ejector Check Valve
2020-04-01Fixed WingDe Havilland - CAN DHC 8 30120180711016Dash 8/300 Secondary Flap Drive Shaft
2019-12-18Fixed WingDe Havilland - CAN DHC 8 10220180226023Failed Parking Brake Control Valve
2019-08-13Fixed WingDe Havilland - CAN DHC 8 40220171010009Broken exhaust trunnion mount
2019-08-13Fixed WingDe Havilland - CAN DHC 8 31420171026007Leaky fuel line
2018-11-14Fixed WingDe Havilland - CAN DHC 8 40220170918004Chafed hydraulic line
2018-07-01Fixed WingDe Havilland - CAN DHC 8 40220170918003Cracked Brake Fitting
2018-03-31Fixed WingDe Havilland - CAN DHC 8 40020160728018Broken Aileron Cable
2017-12-31Fixed WingDe Havilland - CAN DHC 8 40220170523012Broken Wheel Tie Bolts
2017-09-11Fixed WingDe Havilland - CAN DHC 8 40220170116010Burnt Terminal Block
2017-06-30Fixed WingDe Havilland - CAN DHC 8 40020160928011In-flight Shutdown Due to Damaged Exhaust
2017-04-13Fixed WingDe Havilland - CAN DHC 8 30020160928023Corroded Wires
2017-04-13Fixed WingDe Havilland - CAN DHC 8 40220160408013Disintegration of Starter-generator Drive Shaft Dampener Plate
2017-07-19Fixed WingDe Havilland - CANDHC 8 31120161129010Failed Elevator Spring Tab Bearings
2020-04-01Fixed WingDornier328 10020190121014Ballast Fire Creates Exciting Flight
2018-09-10Fixed WingDouglasDC3C20170614007, 20171127017Attentive Walk Around Prevents Possible Incident
2019-12-18Fixed WingLearjet4520180914008Loss of Hydraulic Fluid Can Lead to Complete Hydraulic Failure
2020-07-07Fixed WingPilatusSW, PC12 4520190408007Steering System Troubles
2020-04-01Fixed WingPilatusSW, PC12 47E20190329033Improper Wiring Practices
2018-11-14Fixed WingPilatusSW, PC12 47E20170928006Landing Gear - Electrical
2017-04-13Fixed WingPilatusSW, PC12 47E20150624001Ailerons freezing in flight
2017-12-31Fixed WingPiperPA28 14020170331002Control Column T Section Welds Cracking and Failures
2021-10-20Hangar NoiseBombardierCL600 2D24 (RJ900)20191203018RJ900 – Fuel Leak Due to Slat Canister Crack
2021-07-15Hangar NoisePilatusPC12 47E20210303003Deteriorated Clamp Found before Failure
2021-07-15Hangar NoiseBombardierCL600 2D24 (RJ900)20190924002RJ 900 Slat Damage Found During Maintenance
2018-01-01Hangar NoiseBombardierCL600 2D2420170505007Nose Landing Gear Damaged on Push-Back
2020-12-02Hangar NoiseBombardierCL600 2D24 (RJ900)20181114006RJ900 – Passenger Door Inner Handle Cracking
2022-02-28Heads upAerospatialeATR 42
ATR 72		20190925002
20171012009
20190927006		Side Window De-ice Burnt Terminals
2021-10-20Heads upPilatusPC12 47E20200604010Bleed Air Overtemperature Switch – Revised Test Procedure
2021-08-17Heads upCanadairCL215 6B11 (CL415)20210719024Blocked Vent Openings
2021-06-01Heads upDe Havilland - CANDHC 6 30020201008019Service Difficulty Reports Involving Supplemental Type Certificate (STC) and/or Part Design Approval (PDA) and/or Parts Manufacturing Approval (PMA) Parts
2021-06-01Heads upBeech20020081027005Aviadesign Inc. Hydraulic Landing Gear Retraction System Fork End Failure
2021-05-25Heads upPilatusPC12 4520201222011Wiring Diagram Manual Error
2021-05-05Heads upBombardierCL600 2D24 (RJ900)20190531002RJ900 – Aft Cargo Compartment Floor Beam Corrosion
2021-03-03Heads upAirbus CanadaBD 500 1A1120200721006Small Foreign Object Damage (FOD) Equates to Big Problem
2020-12-02Heads upAirbus CanadaA220-100 and A220-30020171221007, 20181211019, 20181221003Airbus Canada Service Letter CS-SL-28-20-0004 – Improved Fuel Check Valve Retaining Wire
2020-12-02Heads upBombardierCL600 2D24 (RJ900)20190313002Level 2 Corrosion – Passenger Door
2020-12-02Heads upBombardierCL600 2D24 (RJ900)20190412003Ram Air Heat Exchanger Ducts Cracked
2020-12-02Heads upBell Textron - USA412EP20191127002Float and Life Raft Failure to Inflate
2018-08-02Heads upN/AN/AN/AImprovements to the online submission of the Annual Airworthiness Information Report (AAIR)
2020-07-07Heads upLOCKHEEDL100-38220180706010 & 20180706012Wing Bolts Received New From Supplier Were Found Cracked Before Installation
2020-07-07Heads upCANADAIRCL600 2B16 (601 3R)20180716012New Tire Found With Metal Protruding From Sidewall
2020-04-01Heads upN/AN/A20181203023Incorrect Hook and Loop Installation on Emergency Locator Transmitters (ELT)
2020-04-01Heads upBombardierBD 500 1A1020180208005Nose Landing Gear (NLG) Collapsed Oleo Events
2020-04-01Heads upN/AN/AN/APenney & Giles Aerospace Ltd Multi-Purpose Flight Recorder (MPFR) Internal Corrosion
2019-08-13Heads upPiperPA31 35020171108018Anti-retraction Solenoid for the Piper PA31-350 Landing Gear Selector
2019-07-17Heads upAerospatialeATR 42 32020150224028Small bulb, big problem
2019-07-17Heads upBoeing767 32820180424017Bleed Air Pre-Cooler Air Leak
2018-07-01Heads upBombardierCL600 2D15 (705), CL600 2C10 (700, 701, 7020 and CL600 2D24 (900)20170817016Frame corrosion under forward passenger door
2018-11-14Heads upN/AN/AN/AEngines and APU’s
2018-11-14Heads upN/AN/A20170404021V-Band Couplings and Clamps. Maintenance of V-Band Couplings and Clamps
2018-11-14Heads upDiamondDA 20 C120170623010Teledyne Continental Motors Ignition Switches
2018-07-01Heads upAerospatialeATR 42N/AWheel Assembly Tie Bolt Failures
2018-07-01Heads upBoeing757 2B720171004006The Effects of Skydrol
2018-03-31Heads upBombardierCL600 2D15 (705)20161020005Equipment Airworthiness Directive on Crew O2 Mask
2017-12-31Heads upBombardierCL600 2D24 (RJ900)20161121006Circuit Breaker Panel Burned Through
2022-02-28RotorcraftBell Textron - Canada42920200311006Bell 429 Battery Venting
2022-02-28RotorcraftBell Textron - Canada50520210506023Air Conditioner Tube Fouling with Electrical Harness and Cargo Hook Release Cable
2022-02-28RotorcraftBell Textron - Canada50520200617008Bell 505 Airframe Furnished Engine Oil Tank Cracked Mounting Tabs
2022-02-28RotorcraftAerospatiale HCAS 350B220211217008Damaged Tail Rotor Control Rod Assembly
2021-10-20RotorcraftAerospatiale HCAS 350B220201127013Main Gearbox Oil Filter Gasket
2021-09-14RotorcraftAerospatiale HCAS 350B220210215012Starter Generator Updated Overhaul and Time Between Overhaul Schedule
2021-08-17RotorcraftAirbus HelicoptersAS 350B220200326017Tail Rotor Gearbox Chip Light
2021-07-15RotorcraftBell Textron - Canada42920210219018Bell 429 Main Rotor Transmission Debris Pan Inspection
2021-05-25RotorcraftBell Textron - Canada206L 320180323008Throttle Cable Assembly Failures and New Part Number Introduction
2021-05-05RotorcraftRobinsonR44 II20200221010R44 II Main Rotor Gearbox (MRGB) Input Yoke Retaining Nut Loss of Torque
2021-05-05RotorcraftBell Textron - USA21220200127013Updated Bell Medium Main Rotor Gearbox Spider Inspection
2021-03-03RotorcraftBell Textron - Canada42920200706010Loose Horizontal Stabilizer Spar Clamp
2021-03-03RotorcraftBell Textron - Canada206B20180604020Main Rotor Blade Trim Tab Adhesive Cracking and Debond
2021-01-27RotorcraftBell Textron - Canada4072016010902462Erratic Measured Gas Temperature Indications
2021-01-27RotorcraftBell Textron - Canada40720200226023Paravion External Load Mirror Specific Maintenance Instructions
2020-12-02RotorcraftAerospatiale HCAS 350B320151217011Unserviceable Post-modification 079568 Hydraulic Pump Bearing
2020-12-02RotorcraftEurocopter FranceEC 120 B20171103022Worn Tail Rotor Drive Splines and Coupling
2020-12-02RotorcraftBell Textron - Canada42920200605011Expandable Blade Bolt Loose Pivot Pin
2020-04-01RotorcraftAerospatiale HCAS 355NP20150330010Cracked Tail Rotor Drive Shaft Support Bracket
2019-12-18RotorcraftDart Aerospace, EquipmentN/A20180306004Dart Aerospace Spacedoor Dislodged on Bell 412
2020-07-07RotorcraftRobinsonR44 II20190423010Robinson R44 II Throttle Link
2020-04-01RotorcraftRobinsonR44 II20190318029Concorde Battery Electrical Short
2020-04-01RotorcraftRobinsonR44 II20190611012Defective R44 II Engine Air Induction Hose
2017-06-30RotorcraftRobinsonR6620160913004Tail Rotor Driveshaft Bearing Overheating
2017-05-01RotorcraftHelicopter Technology Company, EquipmentN/A20160613017Delamination of Main Rotor Blade Abrasion Strip
2020-07-07RotorcraftBell Textron - Canada50520190911012Effects of Overfilling Engine Reduction Gearbox Oil
2020-04-01RotorcraftBell Textron - Canada42920161121001Pitot-Static System Fittings Loose Hardware
2018-11-14RotorcraftBell Textron - Canada40720170209010Expandable Main Rotor Blade Bolt Pivot Pin Movement
2018-03-31RotorcraftBell Textron - Canada206B20170808010Cracked Tension Torsion Strap Urethane Coating
2017-06-20RotorcraftBell Textron - Canada206B20160715005Cracked Aft Fuselage Frame
2017-04-13RotorcraftBell Textron - Canada40720160614023Fractured Tail Skid
2017-06-16RotorcraftBell Textron - Canada42920160128004Pitch Restraint Spring Debonding
Copyright

Reprints of original Feedback material are encouraged, but credit must be given to Transport Canada's Feedback. Please forward one copy of the reprinted article to the Editor.

To obtain information concerning copyright ownership and restrictions on reproduction of the material, please address your correspondence to:

Marie Saglio, Editor
Feedback
Transport Canada (AARDA)
159 Cleopatra Drive
Nepean ON K1A 0N5
E-mail: marie.saglio@tc.gc.ca
Tel.: 1-888-663-3639 Fax: 613-996-9178

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Transport (2016).

ISSN 1925-8429 (Online)

Service Difficulty Reports (SDRs)

Service Difficulty Reports are submitted by Aircraft Maintenance Engineers (AMEs), owners, operators and other sources to report problems, defects or occurrences that affect aircraft airworthiness in Canada.

Suspected Unapproved Parts (SUP)

In Canada, SUPs are reported in accordance with section 571.13 of the standard of the Canadian Aviation Regulation (CAR).

When you suspect an unapproved part, the SUP report can be submitted on the SDR form or through the Web Service Difficulty Reporting System.

FAA Unapproved Parts Notifications (UPN)

Unapproved Parts Notifications are published by: FAA, AIR-140, P.O. Box 26460, Oklahoma City, OK 73125.

FAA Special Airworthiness Information Bulletins (SAIB)

A Federal Aviation Administration (FAA) SAIB is an information tool that alerts, educates, and makes recommendations to the general aviation community. It is non-regulatory information and guidance that does not meet the criteria for an Airworthiness Directive (AD).

EASA Safety Information Bulletin (SIB)

European Aviation Safety Agency (EASA) SIB is an information tool that alerts, educates, and makes recommendations to the general aviation community. It is non-regulatory information and guidance that does not meet the criteria for an Airworthiness Directive (AD).

Transport Canada (TC) endeavours to send copies of new Airworthiness Directives (ADs), which are applicable in Canada to the registered owners of the affected products. Equipment/appliance ADs are often only distributed to our regional offices because the owners of aircraft affected by this type of AD are not generally known.

Aircraft Maintenance Engineers (AMEs) and operators of the affected products are encouraged to obtain further information or a copy of the ADs from their regional TC office, their local Transport Canada Centre (TCC), their Principal Maintenance Inspector (PMI), or from the Civil Aviation AD website.

Contact

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Quebec

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Information and contact details for Pacific Region

 
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