Lycoming ALF502R-5

Service difficulty reports · 784

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE engine_model_key = 'ALF502R5'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR AU000063Relief Valve · corroded(AUS) GREEN HYDRAULIC SYSTEM PRESSURE RELIEF VALVE BURST DISC RUPTUREDDUE TO INTERNAL CORROSION IN THE VALVE. VALVE WAS AN OVERHAULED ITEM AND FAILED ON THE FIRST FLIGHT FOLLOWING FITMENT.Jan 30, 2000 · Bag BAE146200A · Hydraulic Pressure Relief Valve, MainSDR CA000203001Engine · leaking(CAN) NR 9 SEAL FOUND TO BE LEAKING OIL INTO ENGINE COMPRESSOR SECTION. SEAL REPLACED.Jan 29, 2000 · Bag BAE146200A · Engine (Turbine/Turboprop)SDR CA000201004Bearing · failed(CAN) TEARDOWN REPORT STATES THAT THE NR 2 BEARING PACK OUTER RACE RETENTION PIN HAD FAILED ALLOWING THE OUTER RACE TO SPIN IN THE HOUSING.Jan 23, 2000 · Bag BAE146200A · Engine (Turbine/Turboprop)SDR AU000128002Pump · failed(AU) UNUSUAL NOISE AND VIBRATION NOTED DURING FLIGHT. INVESTIGATION REVEALED A FAILED NR 3 EDP. PUMP REPLACED.Jan 18, 2000 · Bag BAE146200A · Hydraulic Pump (Electric/Engine), MainSDR CA000128002Pump · failed(CAN) UNUSUAL NOISE AND VIBRATION NOTED DURING FLIGHT. INVESTIGATION REVEALED A FAILED NR 3 EDP. PUMP REPLACED.Jan 18, 2000 · Bag BAE146200A · Hydraulic Pump (Electric/Engine), MainSDR CA000120003Seal · leaking(CAN) NR 9 SEAL FOUND TO BE LEAKING OIL INTO ENGINE COMPRESSOR SECTION. SEAL REPLACED.Jan 16, 2000 · Bag BAE146200A · Turbine Engine Oil SystemSDR CA000118006Selector Valve · bypassing(CAN) PTU RUNNING CONTINUOUSLY. INVESTIGATION REVEALED THAT THE GREEN SYS DELAY RATE WAS OUT OF LIMITS AND THAT THE LANDING GEAR SELECTOR VALVE WAS BYPASSING INTERNALLY. VALVE REPLACED.Jan 12, 2000 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR AU000128001O-Ring · failed(AU) DAMAGED O-RING ON THE GREEN SYSTEM HIGH PRESSURE FILL MANIFOLD LED TO A LOSS OF ALL SYSTEM FLUIDS. PART REPLACED.Jan 11, 2000 · Bag BAE146200A · Hydraulic System, MainSDR CA000128001O-Ring · failed(CAN) DAMAGED O-RING ON THE GREEN SYSTEM HIGH PRESSURE FILL MANIFOLD LED TO A LOSS OF ALL SYSTEM FLUID. PART REPLACED.Jan 11, 2000 · Bag BAE146200A · Hydraulic System, MainSDR CA000118055Actuator · jammed(CAN) GEAR UNSAFE INDICATION ON RETRACT SELECTION. AIRCRAFT FERRIED TO MAINT. BASE FOR REPAIRS. INVESTIGATION REVEALED A JAMMED SELECTOR VALVE MOTOR. THIS WAS NOT EVIDENT UNTIL AFTER MANY GEAR SWINGS.Jan 10, 2000 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR AU000061Relief Valve · failed(AUS) GREEN HYDRAULIC SYSTEM PRESSURE RELIEF VALVE INTERNALLY CORRODED. OVER-PRESSURE DISC BURST. RELIEF VALVE WAS AN OVERHAULED UNIT AND HAD BEEN FITTED THE PREVIOUS NIGHT.Jan 9, 2000 · Bac 146200A · Hydraulic Pressure Relief Valve, MainSDR A6WA0000004Ignitor · crackedNR 1 ENGINE COMBUSTOR OUTBOARD IGNITOR BASE HAS CRACKED IN WELD, NEED DYE PENETRANT TO VERIFY LENGTH FOR SERVICEABILITY. C/W PT INSPECTION PER ENGINE MM AND AWAC NDT SPEC. FOUND TWO CRACKS 180 DEGREES APART IN IGNITOR BOSS, 1 CRACK = .9 INCH, OTHER = .6 INCHJan 6, 2000 · N292UE · Bag BAE146200A · Spark Plug/IgniterSDR AU000035Fitting · misinstalled(AUS) NR 4 ENGINE INTEGRATED DRIVE GENERATOR (IDG) OIL TEMPERATURE SWITCH T-PIECE INCORRECTLY FITTED DURING IDG REPLACEMENT PRIOR TO FLIGHT. THE T-PIECE THEN INTERFERED WITH THE THRUST CONTROL LINKAGES AT THE THRUST MODULATION SYSTEM ACTUATOR.Jan 5, 2000 · Bac 146300A · AC Generator-AlternatorSDR CA000118007Selector Valve · bypassing(CAN) FLAPS OPERATING SLOWLY, PTU RUNNING CONTINUOUSLY. INVESTIGATION REVEALED THAT THE GREEN SYS DELAY WAS OUT OF LIMITS AND THAT THE LANDING GEAR SELECTOR VALVE WAS BYPASSING INTERNALLY. VALVE REPLACED.Jan 4, 2000 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR AU000052Windshield · cracked(AUS) RIGHT ''B'' WINDSCREEN OUTER PLY CRACKED.Jan 2, 2000 · Bac 146200A · Flight Compartment WindowsSDR CA000118013Window Heat · failed(CAN) WINDSHIELD HEAT UNSERVICEABLE. WINDSHIELD REPLACED.Dec 21, 1999 · Bag BAE146200A · Flight Compartment WindowsSDR CA000110008Bearing · making metal(CAN) REPORT TO FOLLOW. RETAINING PIN ON NR 2 BEARING PACK FAILED.Dec 15, 1999 · Bag BAE146200A · Turbine Engine Compressor SectionSDR CA000110009Power Supply · intermittent(CAN) FLIGHT CREW REPORTED EMERGENCY LIGHTS IN FORWARD CABIN INTERMITTENT OPERATION. POWER SUPPLY FOUND AT FAULT, REPLACED.Dec 14, 1999 · Bag BAE146200A · Emergency LightingSDR CA991229008Pitot Head · failed(CAN) Q FEEL HEATER FAIL CAUTION LIGHT ILLUMINATED DURING CLIMB. AIRCRAFT RETURNED AND Q FEEL PITOT HEAD REPLACED.Dec 12, 1999 · Bac 146200A · Pitot/Static SystemSDR CA991229006Servo Valve · failed(CAN) FLIGHT CREW REPORTED AN UNCOMMANDED DEPLOYMENT OF THE AIRBRAKE DURING APPROACH. AIRBRAKE SERVO VALVE REPLACED.Dec 8, 1999 · Bac 146200A · Drag Control SystemSDR CA991229005O-Ring · leaking(CAN) DURING ROUTINE INSPECTION A FUEL LEAK WAS DISCOVERED AT NR4 PYLON. THE SOURCE OF THE LEAK WAS DETERMINED TO BE THE SEAL AT THE FUEL TANK TO PYLON ELBOW. SEAL REPLACEDDec 7, 1999 · Bac 146200A · Fuel StorageSDR CA991229004Control Unit · failed(CAN) INVESTIGATION INTO A RECURRENT FLAP CAUTION LIGHT LED TO THE REPLACEMENT OF THE GREEN SYSTEM RESOLVER ON THE FLAP POWER UNIT.Dec 3, 1999 · Bac 146200A · Trailing Edge Flap Control SystemSDR CA991208044Fasteners · undertorqued(CAN) FUEL LEAK FOUND IN RIGHT REAR WING ROOT AREA. SEVERAL SUSPECT FASTENERS TIGHTENED IAW HC536H9043 AND THE LEAK SUBSIDED.Dec 1, 1999 · Bag BAE146200A · Wing Main, Frame StructureSDR CA991208043Sensor · shorted(CAN) AIR LOW TEMP WARNING LIGHT ON IN-FLIGHT WITH WING DEICE SELECTED ON. NR 4 DUCK OVERTEMP SWITCH SHORTED CAUSING AIR VALVE TO CLOSE RESULTING IN LOW PRESSURE. OVERTEMP SWITCH REPLACED.Nov 30, 1999 · Bag BAE146200A · Airfoil Anti/De-ice SystemSDR CA991208047Receptacle · failed(CAN) ELECTRICAL BURNING SMELL REPORTED IN FORWARD GALLEY. INVESTIGATION REVEALED A BURNT RECEPTICAL ON THE COFFEE MAKER. RECEPTICAL REPLACED.Nov 30, 1999 · Bag BAE146200A · Buffet/GalleysSDR CA991208042Heater · failed(CAN) RIGHT PILOTS WINDSCREEN HEAT NOT WORKING. WINDSCREEN REPLACED.Nov 18, 1999 · Bag BAE146200A · Flight Compartment WindowsSDR CA991208046Fasteners · loose(CAN) FUEL LEAK FOUND IN RIGHT REAR WING ROOT AREA. SEVERAL SUSPECT FASTENERS TIGHTENED IAW HC536H9043 AND THE LEAK SUBSIDED.Nov 15, 1999 · Bag BAE146200A · Wing Main, Frame StructureSDR CA991208041Controller · sticking(CAN) OVEN TIMER STICKING. OVEN CONTROLLER REPLACED.Nov 8, 1999 · Bag BAE146200A · Buffet/GalleysSDR CA991208045Seal · leaking(CAN) ODOR IN CABIN WITH ENGINE AIR SELECTED. ACM SELECTED OFF, MAINTENANCE FOUND THAT OIL WAS POOLING AT THE NR 9 SEAL LOCATION OF THE NR 3 ENGINE. SEAL AND FACEPLATE WERE REPLACED.Nov 7, 1999 · Bag BAE146200A · Turbine Engine Compressor SectionSDR CA991208040Chain Drive · binding(CAN) FLIGHT CREW REPORTED ELEVATOR TRIM GRINDING AND BINDING IN BOTH MANUAL AND ELECTRIC MODES. TRIM SYSTEM LUBRICATED AND OPERATED NORMAL.Nov 3, 1999 · Bag BAE146200A · Elevator Tab Control SystemSDR A6WA9900122Fuel Conrol · failedCOS/DEN - FLT 5568 - UNCOMMANDED ROLL BACK ON NR 2 ENGINE, ABORTED TAKEOFF. REMOVED AND REPLACED NR 2 FUEL CONTROL UNIT. FUEL CONTROL UNIT TSR 3166 CSR 3553. PART TOTAL CYCLES, 19,244. (X)Oct 30, 1999 · N608AW · Bag BAE146200A · Fuel Control/Turbine EnginesSDR CA991208049Actuator · failed(CAN) LOW PRESSURE HYDRAULIC SYSTEM GREEN LIGHT ON AT PUSHBACK AFTER ENGINE START. GREEN SYS ISOLATION VALVE REPLACED. TOTAL TIME ON PART 28,506 HOURS.Oct 28, 1999 · Bag BAE146200A · Hydraulic System, MainSDR CA991103007Actuator · corroded(CAN) FLIGHT CREW REPORTED A CLUNKING NOISE COMING FROM THE NLG WELL. INVESTIGATION REVEALED A LOSS OF SEALANT AROUND THE NOSE GEAR ACTUATOR ROD END. ROD END HAD LOST MOST OF ITS LOCKING. ACTUATOR REPLACED.Oct 25, 1999 · Bag BAE146200A · Landing Gear ActuatorSDR AU991094Bracket · corroded(AUS) LEFT AND RIGHT MAIN LANDING GEAR DOOR REAR HINGE BRACKETS CORRODED IN THE AREAS DESCRIBED IN SB 32-A119 (AD/BAE146/035).Oct 20, 1999 · Bag BAE146200A · Landing Gear DoorsSDR CA991027016Spring · broken(CAN) FLIGHT DECK DOOR REPORTED TO BE BINDING NEAR THE TOP. INVESTIGATION REVEALED A BROKEN DOOR SPIGOT SPRING.Oct 19, 1999 · Bag BAE146200A · Fixed Inner DoorsSDR AU991058Bracket · corroded(AUS) LEFT AND RIGHT MAIN LANDING GEAR DOOR REAR HINGE BRACKETS CORRODED ON THE FORWARD SEGMENTS ADJACENT TO THE BONDING LEAD ATTACHMENT HOLES. FOUND DURING INSPECTION IAW AD/BAE146/035, SB 32-A119 AND ER BA6-32-10-30.Oct 13, 1999 · Bag BAE146300A · Landing Gear DoorsSDR CA991027032Actuator · intermittent(CAN) ON EXTEND, SELECTION GEAR MOVEMENT DELAYED SIX SECONDS. GEAR SWINGS CONFIRMED FAULT AND LED TO REPLACEMENT OF LANDING GEAR SELECTOR VALVE ACTUATOR.Oct 13, 1999 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR CA991027015Windscreen · delaminated(CAN) LARGE AREA OF CAPTAIN'S B-WINDOW DELAMINATED. WINDSCREEN REPLACED.Oct 1, 1999 · Bag BAE146200A · Flight Compartment WindowsSDR CA991007011Valve · leaking(CAN) CREW UNABLE TO ACHIEVE N1, TEMP LIMITED. FCU POPPET VALVE FOUND LEAKING WHICH CONTROLS BLEED BAND OPERATION.Sep 27, 1999 · Bag BAE146200A · Fuel Control/Turbine EnginesSDR CA991007014Seal · leaking(CAN) CREW REPORTED OIL SMELL IN COCKPIT. NR 4 ENGINE, NR 9 SEAL AND FACEPLATE REPLACED.Sep 27, 1999 · Bag BAE146200A · Turbine SectionSDR CA991007005Relay · failed(CAN) ICE FORMED ON PILOT'S OUTER 30 PERCENT OF WINDSHIELD. FAILURE OF RELAY 1HL14. RELAY REPLACED.Sep 25, 1999 · Bag BAE146200A · Windshield/Door Rain/Ice RemovalSDR CA991004015Harness Assy · open(CAN) MAIN PASSENGER DOOR OPEN INDICATION WITH DOOR CLOSED. INVESTIGATION REVEALED THAT THE CIRCUIT WAS FAULTY. WIRING LOOM REPLACED.Sep 13, 1999 · Bag BAE146200A · Door Warning SystemSDR 99ZZZX4644Housing · fracturedDURING GROUND (TEST CELL) TEST, ENGINE S/N LF05867A, A LOUD BANG WAS HEARD AND SPARKS WERE OBSERVED. THE ENGINE WAS THROTTLED BACK TO IDLE AND SHUT DOWN IAW MM (286-1) PROCEDURES. INSP OF ENG REVEALED THE CUSTOMER AIR BLEED MANIFOLD HAD A SKIN FRACTURE AT 5 Sep 12, 1999 · Turbine Engine Combustion SectionSDR CA990927003Fcu · sticking(CAN) NR 1 ENG SHUTDOWN DURING LANDING. INVESTIGATION REVEALED THAT THE NR 1 ENGINE TMS ACTUATOR HAD STUCK IN THE FULLY RETRACTED POSITION CAUSING THE FCU TO MOVE INTO THE SHUT-OFF POSITION WHEN THE THROTTLE WAS RETARDED TO FLIGHT IDLE. ACTUATOR REPLACED.Sep 10, 1999 · Bag BAE146200A · Fuel Control/Turbine EnginesSDR CA990927005Stator · disintegrated(CAN) NR 4 BRAKE ASSY REPLACED DUE TO WEAR. DISSASEMBLY REVEALED COMPLETE DISINTEGRATION OF SPREADER PLATE AND THE SPREADER PLATE WAS IN DIRECT CONTACT WITH THE ROTOR. SUBMITTER REPORTS THAT THE BRAKE WAS FULLY FUNCTIONAL IN THIS CONDITION.Sep 10, 1999 · Bag BAE146200A · BrakeSDR CA990927002Actuator · rough(CAN) CREW REPORTED RUDDER FEELS ROUGH. UPPER ACTUATOR REPLACED.Sep 9, 1999 · Bag BAE146200A · Rudder ActuatorSDR CA990915028Line · leaking(CAN) LOSS OF YELLOW SYSTEM HYDRAULIC FLUID IN--FLIGHT DUE TO FLEX LINE FROM PTU TO SHUTOFF VALVE LEAKING..LINE REPLACED.Aug 27, 1999 · Bag BAE146200A · Hydraulic System, MainSDR AU990953Hinge · corroded(AUS) LEFT AND RIGHT MAIN LANDING GEAR DOOR REAR HINGE BRACKETS CORRODED IN THE AREA ADJACENT TO THE BONDING LEAD ATTACHMENT POINTS ON THEFORWARD BRACKET SEGMENTS.Aug 20, 1999 · Bag BAE146300A · Landing Gear DoorsSDR CA990915032Pump · leaking(CAN) YELLOW HYDRAULIC SYSTEM INDICATED LOW AND FLUID OBSERVED LEAKING FROM NR 2 EDP. PUMP REPLACED.Aug 19, 1999 · Bag BAE146200A · Hydraulic Pump (Electric/Engine), MainSDR CA991004016Cable · sticking(CAN) NR 4 ENGINE POWER LEVER STIFF AT ALL TIMES. ENGINE LOWER TELEFLEX CABLE REPLACED.Aug 14, 1999 · Bag BAE146200A · Power Lever
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