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 97ZZZX3110Fuel Manifold · leakingNR 3 ENGINE HAS FUEL LEAKING FROM LOWER PORTIONS OF EACH MANIFOLD ON START, NOT EVIDENT DURING RUN. REMOVED LT AND RT FUEL MANIFOLD. REPLACED SEALS AND INSTALLED BOTH MANIFOLDS. ENGINE ROBBED FOR ANOTHER, LEAK CHECK ON CHECKLIST RWR 2-14-97.Feb 14, 1997 · N608AW · Bag BAE146200A · Engine Fuel DistributionSDR CA970311093Seal · leaking(CAN) RESIDUAL OIL WAS REPORTED TO BE COLLECTING IN THE 4TH NOZZLE AND TAILPIPE AREA AT THE 6 O''''CLOCK POSITION. MAINTENANCE REMOVED ENGINE AND EXPOSED NR 4 AND NR 5 BEARING SEAL AREA TO CONFIRM LEAKAGE OF NR 5 BEARING SEAL. AS A PRECAUTION, NUMBERS 4 ANDFeb 14, 1997 · Bag BAE146200A · Turbine SectionSDR CA970319011Actuator · corroded threads(CAN) AFTER A REPORTED INCIDENT BY ANOTHER OPERATOR, A FLEET INSPECTION WAS CARRIED OUT ON THE NOSE GEAR. AS A RESULT ONE ACTUATOR WAS FOUND WITH ROD END LOOSE AND SEVERE CORROSION ON THREADS.Feb 11, 1997 · Bag BAE146200A · Landing Gear ActuatorSDR CA970226070Rotor · failed(CAN) PILOT REPORTED NR 3 ENGINE FAILED ON TAKEOFF. DURING SPOOL UP AND PRIOR TO N1, A LOUD BANG WAS HEARD AND THE NR 3 ENGINE PARAMETERS WENT TO ZERO. STRIP DOWN FOUND 1ST STAGE TURBINE ROTOR HAD FAILED, POSSIBLY A BLADE FAILURE, CAUSING A COMPLETE FAILURE Feb 5, 1997 · Turbine SectionSDR CA970422011Actuator · corroded(CAN) DURING HANGAR MAINTENANCE FOR UNRELATED STEERING PROBLEM, THE EYE BOLT ASSEMBLY SEPARATED FROM THE NOSE LANDING GEAR RETRACTION JACK ACTUATOR. THE CAUSE OF SEPARATION WAS EXTENSIVE CORROSION TO EYE BOLT THREADS AND PISTON ROD. INSPECTION OF FLEET CARRIEDJan 15, 1997 · Bag BAE146200A · Landing Gear ActuatorSDR CA970422040Actuator · corroded(CAN) AFTER FINDING A CORRODED EYE BOLT ON THE RETRACTION JACK ACTUATOR OF THE NOSE LANDING GEAR A FLEET INSPECTION WAS CARRIED OUT AND THIS AIRCRAFT ALSO WAS FOUND WITH PROBLEM. ALTHOUGH NOT QUITE AS EXTENSIVE AS THE FIRST AIRCRAFT CORROSION WAS STILL EVIDENTJan 15, 1997 · Bag BAE146200A · Landing Gear ActuatorSDR CA970109030Flange · cracked(CAN) INSPECTION FOUND CRACK AROUND ENGINE FLANGE LIP.Dec 17, 1996 · Engine (Turbine/Turboprop)SDR 97ZZZM447Manifold · failedINSPECTED FUEL MANIFOLD FOR EVIDENCE OF SOOT AND DISCOLORATION IND. FUEL FIRE, PERFORMED ET INSPECTION OF 5TH SCALLOP FROM TOP FOR CRACKS IAW TEXTRON SPEC PROCEDURE. PERFORMED DV INSPECTION OF RT FUEL MANIFOLD, S/N 863. FOUND A SMALL VISUAL IND IN THE 5TH SDec 12, 1996 · N612AW · Bag BAE146300A · Engine Fuel DistributionSDR CA961217002Resolver · failed(CAN) WING FLAPS STUCK AT 0 DEGREES. FOUND GREEN MAIN RESOLVER OPEN. RESOLVER REPLACED AND RE-RIGGED.Dec 12, 1996 · Bag BAE146200A · Trailing Edge Flap Control SystemSDR CA961217001Landing Gear · iced up(CAN) LEFT HAND MAIN LANDING GEAR UNSAFE LIGHT REMAINED ON WITH GEAR SELECTED UP. AIRCRAFT RETURNED TO AIRPORT. ICE CLEANED FROM GEAR UPLCOK AND UPLOCK LUBRICATED.Dec 5, 1996 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR 97ZZZM394Manifold · defectiveNR 3 ENGINE OUTBOARD FUEL MANIFOLD SHOWED DEFECTS DURING THE ET CHECK WITH SLIGHT SOOTING INSIDE THE COWL. REPLACED MANIFOLD ASSEMBLY. (M)Nov 30, 1996 · N611AW · Bag BAE146300A · Engine Fuel DistributionSDR CA961128006Bearing Cage · breaking apart(CAN) #2 ENGINE OIL FILTER IMPENDING BY-PASS BUTTON EXTENDED. #2 FULL FLOW CHIP DETECTOR FOUND TO BE METAL CONTAMINATED. METAL ANALYSIS FOUND TO BE #3 BEARING CAGE MATERIAL. ON DISASSEMBLY #3 BEARING CAGE WAS FOUND TO BE BREAKING APART.Nov 20, 1996 · Turbine Engine Compressor SectionSDR CA961113001Sensors · dirty(CAN) LEFT HAND GEAR UNSAFE LIGHT ON AFTER GEAR RETRACTION. AIRCRAFT RETURNED TO AIRPORT. DIRT FOUND IN GEAR UPLOCK AND DOOR SENSORS. CLEANED AND GEAR SWUNG.Nov 8, 1996 · Bag BAE146200A · Landing Gear Position and WarningSDR CA961112001Socket · burnt(CAN) DURING MAINTENANCE SMOKE AND ELECTRICAL BURNING ODOUR NOTED IN THE REAR LAVATORY. FLUORESCENT LIGHT SOCKET FOUND BADLY BURNED.Nov 1, 1996 · Bag BAE146200A · Passenger Compartment LightingSDR CA961104001Actuator · failed(CAN) ON GEAR EXTENSION ON APPROACH GEAR WOULD NOT EXTEND. EMERGENCY EXTENSION CARRIED OUT. THREE GREEN LIGHTS BUT GEAR IN TRANSIT LIGHT REMAINED ON. GEAR DOWN LOCK PIN COULD NOT BE INSTALLED WITHOUT FORCE. GEAR SELECTOR ACTUATOR REPLACED.Oct 30, 1996 · Bag BAE146200A · Landing Gear ActuatorSDR CA961104002Fuel Tank · leaking(CAN) FUEL LEAK NOTED AT LEFT WING UPPER CORNER. STEADY WEEP FROM AREA OF HI-LOK FASTENER. FASTENERS TORQUE TIGHTENED AND AREA SEALED.Oct 30, 1996 · Bag BAE146200A · Fuel StorageSDR CA961025001Seal · leaking(CAN) FUEL NOTED LEAKING FROM #3 PYLON. FOUND TO BE LEAKING FROM SEAL OF FUEL FEED PIPE. SEALS REPLACED.Oct 23, 1996 · Bag BAE146200A · Aircraft Fuel Distribution SystemSDR CA961025002Seal · oil leak(CAN) AIR QUALITY IN CABIN. PARAMEDICS CALLED FOR FLIGHT ATTENDANTS. #9 SEAL #4 ENGINE FOUND TO BE LEAKING OIL INTO SUPERCHARGER. #9 SEAL REPLACED.Oct 23, 1996 · Engine Air Intake SystemSDR CA961024004Engine · hot start(CAN) HOT START #4 ENGINE. TEMPERATURE UP TO 970 DEGREES C. ENGINE WOULD NOT SHUTDOWN WITH POWER LEVER. T-HANDLE PULLED TO SHUT-OFF FUEL. FIRE EXTINGUISHER ACTIVATED. ENGINE REMOVED FOR HOT SECTION INSPECTION (HSI).Oct 8, 1996 · Turbine SectionSDR CA961018026Wheel Assembly · broken(CAN) A PIECE OF AIRCRAFT WHEEL FOUND ON RUNWAY, AFTER AIRCRAFT TAKEOFF. THE #2 MAIN LANDING GEAR WHEEL WAS MISSING ABOUT 1 FOOT OF THE BEAD AREA. THE TIRE WAS STILL INFLATED.Oct 7, 1996 · Bag BAE146200A · Wheel/Ski/FloatSDR CA961024006Circuit Board · defective(CAN) ON GEAR DOWN SELECTION, FOLLOWING LIGHTS ON: LIFT SPOILERS; MANUAL SPOILER FAULT; Q POT FEEL HEATER FAULT. LANDING GEAR SWITCH CARD FOUND SLOW TO REACT. CIRCUIT BOARD GA40 REPLACED.Oct 2, 1996 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR CA961029013Actuator · contaminated(CAN) AIRCRAFT CARRIED OUT A ZERO DEGREE 'FLAPLESS' LANDING DUE TO FLAPS BEING STUCK IN THE ZERO DEGREE POSITION. MAINTENANCE SUSPECTED MOISTURE IN THE FLAP BALL SCREW ACTUATORS.Sep 23, 1996 · Bag BAE146200A · Trailing Edge Flap Control SystemSDR CA960924002Sensor · failed(CAN) LEFT LANDING GEAR UNSAFE LIGHT REMAINED ON AT POWER UP. CONFIRMED AS INDICATION ONLY. LEFT MAIN GEAR DOWN LOCK PROXIMITY SWITCH SENSOR FOUND FAILED.Sep 18, 1996 · Bag BAE146200A · Landing Gear Position and WarningSDR CA960924001Seal · leaking(CAN) ON LANDING FUMES REPORTED IN THE CABIN BY THE FLIGHT ATTENDANT. BOROSCOPE INSPECTION FOUND THE OIL IN #1 BEARING SEAL. THE ENGINE WAS REPLACED.Sep 12, 1996 · Turbine Engine Compressor SectionSDR CA960827002Rotor · disintegrated(CAN) THE ROTOR APPERARS TO HAVE FAILED AS IT WAS COMPLETELY DESTROYED. PRESSURE STATOR REMAINED WITH THE BRAKE ASSEMBLY, BUT WAS BADLY DELAMINATEDAug 23, 1996 · Bag BAE146200A · BrakeSDR CA960812003Accessory Gearbx · making metal(CAN) #4 ENGINE FULL FLOW CHIP DETECTOR (FFCD) CONTAMINATED WITH METAL CHIPS (CONDITION 3). ALL OTHER CHIP DETECTORS INSPECTED AND HEAVY CONTAMINATION WAS FOUND ON FFCD AND ACCESSORY GEARBOX (AGB) CHIP DETECTOR. ANALYSIS OF METAL SHOWED METAL TO BE AMS6440 BEAAug 12, 1996 · Turbine Engine Accessory DriveSDR AU961123Circuit Board · faulty(AUS) LANDING GEAR WARNING SYSTEM NOSE LANDING GEAR DOWNLOCK PRINTED CIRCUIT BOARD FAULTYAug 11, 1996 · Bac 146100A · Landing Gear Position and WarningSDR CA960812004Heat Exchanger · cracked(CAN) #1 AIR CONDITIONING PACK HEAT EXCHANGER FOUND WITH 1/2 INCH CRACK IN FORWARD RIGHT HAND CORNER AND IS LEAKING AIR.Aug 9, 1996 · Bag BAE146200A · Cabin Cooling SystemSDR CA960826007Heat Exchanger · cracked(CAN) #1 AIR CONDITIONING PACK HEAT EXCHANGER FOUND WITH 1/2 INCH CRACK IN FORWARD BOTTOM CORNER AND IS LEAKING AIR.Aug 9, 1996 · Bag BAE146200A · Cabin Cooling SystemSDR CA960826008Gear Box · bearing failed(CAN) #4 ENGINE FULL FLOW CHIP DETECTOR (FFCD) CONTAMINATED WITH METAL CHIPS, CONDITION 3. ALL OTHER CHIP DETECTORS INSPECTED AND HEAVY METAL CONTAMINATION FOUND IN THE FFCD AND AGB CHIP DETECTORS. ANALYSIS OF METAL REVEALED AMS6440 BEARING MATERIAL. ACCESSORYAug 9, 1996 · Turbine Engine Accessory DriveSDR CA960826096Pump · worn shaft(CAN) WHEN FUEL BOOST PUMP REMOVED, IT WAS NOTED THAT THE SPLINE TEETH OF THE SHAFT HAD SEVERE WEAR.Aug 6, 1996 · Bag BAE146200A · Fuel Boost PumpSDR AU961104Turbine · failed(AUS) NO2 ENGINE FAILED - TGT INCREASED TO 957 DEGREES - SUSPECT CAUSEDBY 1ST STAGE TURBINE RUBJul 30, 1996 · Bac 146200A · Turbine SectionSDR CA960731004Bearing · failed(CAN) ON FIRST FLIGHT OF DAY, DURING CLIMB OUT AT 15,000 FEET, THE #1 ENGINE INDICATED THERE WAS SIGNIFICANT OIL PRESSURE & QUANTITY LOSS. THE ENGINE WAS SHUTDOWN & THE AIRCRAFT RETURNED TO ITS POINT OF DEPARTURE. PRELIMINARY INSPECTION REVEALED TOTAL LOSS OF Jul 25, 1996 · Turbine Engine Accessory DriveSDR AU961039Trim · fod jammed(AUS) ELEVATOR TRIM JAMMED - INSPECTION FOUND A 100MM (4IN) PAPER CLIP LODGED IN THE CONTROL CABLES ADJACENT TO THE ELEVATOR TRIM CHAIN (CLIP IS PART OF THE AIRCRAFT TRIM AND IS NORMALLY ATTACHED TO A BULKHEAD IN THE FLIGHT DECK) - INVESTIGATION ALSO FOUND THEJul 23, 1996 · Bac 146100A · Elevator Tab Control SystemSDR CA960729017Rib · cracked(CAN) FOUND A PIECE OF METAL APPROXIMATELY 8 INCHES SQUARE MISSING FROM #1 RIB OF THE RUDDER.Jul 22, 1996 · Bag BAE146200A · Rudder, Spar/RibSDR AU961066Valve · faulty(AUS) NO2 ENGINE OIL/FUEL HEATER BYPASS VALVE FAULTYJul 19, 1996 · Bac 146100A · Turbine Engine Oil SystemSDR AU960979Bearing · req lube(AUS) RH AND LH MAIN LANDING GEAR SIDE STAY BEARINGS STIFF - AN ATTEMPTTO REGREASE THE BEARINGS FOUND THAT THE GREASE WOULD NOT ENTER TH INNER BEARINGS - REMOVAL OF THE SIDE STAYS FOUND THAT THE EXISTING GREASE WAS HARD AND DETERIORATED - BEARINGS LAST GREASJul 15, 1996 · Bac 146300A · Main Landing GearSDR CA960716004Bolt · pulled out(CAN) ACCESSORY GEARBOX REMOVED DUE TO GEAR MATERIAL FOUND IN THE CHIP DETECTOR. ON TEARDOWN THE BOLTS (P/N MS9565-05) THAT HOLD THE SHIELD (P/N 2-083-148-01), AND THE REST OF THE ASSEMBLY FOR THE BEVEL INPUT DRIVE GEAR, WERE FOUND PULLED OUT OF THE CASE ASSEMJul 12, 1996 · Turbine Engine Accessory DriveSDR CA960722011Bearing · seized(CAN) DURING MAINTENANCE OF ELEVATOR TRIM SYSTEM THE TRIM SEEMED VERY STIFF AND JUMPY. FOUND HORIZONTAL STAB CENTRE REAR SPAR PULLEY SEIZED.Jul 12, 1996 · Bag BAE146200A · Elevator Tab Control SystemSDR CA960716002Bolts · loose(CAN) FUEL DRIPPING FROM #1 PYLON. LEAK FOUND TO BE RESULT OF TWO LOOSE HIGHLOCK BOLTS AT DOUBLER AT REAR FLAP TRACKS. BOLTS TORQUE TIGHTENED AND RESEALED.Jul 11, 1996 · Bag BAE146200A · Trailing Edge FlapsSDR CA960717006Pin Piston Lever · missing(CAN) IN CRUISE VIBRATION INDICTION WENT TO 1.3 IPS AND VIBRATIONS WERE FELT ON THE FLIGHT DECK. ENGINE WAS SHUTDOWN. POST FLIGHT ENGINE BOROSCOPE INSPECTION WAS CARRIED OUT WITH NO FAULT FOUND. ENGINE GROUND RUN. BLEED BAND FOUND NOT TO BE OPENING DUE TO PISTJul 10, 1996 · Compressor Bleed ControlSDR CA960909014Actuator Bleed · inoperative(CAN) MAINTENANCE FOUND THE BLEED BAND OPENING/CLOSING WAS IMPOSSIBLE TO ADJUST ON THE #3 ENGINE, DUE TO THE INCORRECT ASSEMBLY OF THE FCU ADJUSTMENT MECHANISM. THE COMPLETE BLEED BAND ACTUATING MECHANISM WAS REMOVED, THE ACTUATOR WAS CLEANED. THE TRIGGER LINEJul 9, 1996 · Compressor Bleed ControlSDR CA960909021Actuator Bleed · inoperative(CAN) MAINTENANCE FOUND #1 ENGINE BLEED BAND ACTUATOR AND THE TRIGGER LINE BLOCKED WITH CARBON. THE BLEED BAND ACTUATOR WOULD NOT CLOSE DURING ENGINE OPERATION. MAINTENANCE CLEANED AND PURGED THE BLEED BAND ACTUATOR PLUS ALL TRIGGER LINES AND CONTROL MECHANISMJul 9, 1996 · Compressor Bleed ControlSDR CA960909017Flow Divider · inoperative(CAN) #2 ENGINE WOULD NOT START AFTER REFUELING STOP. DURING THE START SEQUENCE EXCESSIVE FUEL STARTED DRIPPING FROM THE EXHAUST PIPE. THIS FUEL IGNITED CAUSING SOME TORCHING AT THE EXHAUST STACKS. MAINTENANCE FOUND THE FLOW DIVIDER AND CHECK VALVE TO BE INCREJul 8, 1996 · Fuel DividerSDR AU960927Actuator · faulty(AUS) LANDING GEAR SELECTOR VALVE ACTUATOR (MOTOR) WAS DEFECTIVE - THE ACTUATOR WAS CHANGED AND GROUND CHECKS CARRIED OUT - ON 'DOWN' SELECTION THE POWER TRANSFER UNIT RAN CONTINUOUSLY - THE FAULT WAS TRACED TO THE LANDING GEAR SELECTOR VALVE - THE VALVE WAS RJul 5, 1996 · Bac 146100A · Landing Gear Retraction/Extension SystemSDR CA960711004O-Ring · leaking(CAN) WHILE AIRCRAFT WAS TAXIING FOR TAKEOFF AN O-RING ON THE GREEN HYDRAULIC SYSTEM HIGH PRESSURE FILTER FAILED ALLOWING FUMES INTO THE CABIN. AIRCRAFT EVACUATED. O-RING FROM AREA WHICH DOES NOT REQUIRE ONGOING MAINTENANCE AND IS BELIEVED TO BE ORIGINAL. ON RJul 5, 1996 · Bag BAE146200A · Hydraulic System, MainSDR CA960711003Bolt · loose(CAN) DURING ROUTINE TEARDOWN FOR TIME EXPIRED COMPONENT REPLACEMENT TWO REAR HEAT SHIELD BOLTS WERE FOUND LOOSE. ONE BOLT HAD THE LOCK WIRE BROKEN AND HAD BACKED HALF WAY OUT CONTACTING THE 4TH STAGE TURBINE ROTOR CAUSING MINOR DAMAGE. THIS IS THE SECOND INCIJul 4, 1996 · Turbine SectionSDR AU960902Generator · disintegrated(AUS) NO1 ENGINE DRIVEN GENERATOR DISINTEGRATED - DAMAGE CAUSED TO NO1 ENGINE THROTTLE CABLE - INVESTIGATION FOUND DEFORMATION OF THE BACK PLATE CASTING WHICH MAY HAVE ALLOWED A MISALIGNMENT RESULTING IN INTERNAL FAILUREJun 29, 1996 · Bac 146200A · DC Generator-AlternatorSDR CA960703001Check Valve · stuck open(CAN) AFTER SHUTDOWN SMOKE WAS NOTICED COMING FROM THE INTAKE AND THE EXHAUST. TROUBLESHOOTING REVEALED A FAULTY CHECK VALVE BETWEEN THE FUEL BOOSTER PUMP AND THE ECOLOGY PUMP LETTING FUEL INTO THE BURNER CAN. THE CHECK VALVE WAS REPLACED, THE ENGINE INSPECTEDJun 28, 1996 · Fuel DividerSDR AU960983O-Ring · damaged(AUS) NO4 ENGINE MAIN OIL FILTER CAP `O' RING SEAL DAMAGED (CUT) - LOSSOF ENGINE OILJun 24, 1996 · Bac 146200A · Turbine Engine Oil System
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