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 CA971015002Amplifier · failed(CAN) AIRBRAKE CIRCUIT BREAKER POPPED ON DESCENT. NOT ABLE TO RESET. SYSTEM INSPECTED AND PCB CL2 AMPLIFIER AND CL6 MONITOR AIRBRAKE CONTROL REPLACED. MONITOR P/N HC921H0451-000.Sep 23, 1997 · Bag BAE146200A · Drag Control SystemSDR AU971584Windshield · cracked(AUS) FIRST OFFICERS WINDSCREEN CRACKED IN SEVERAL PLACES. SUSPECT CRACK ORIGINATED FROM A LOCALISED HOT SPOT ALONG THE LOWER EDGE OF THE WINDSHIELD.Sep 19, 1997 · Bac 146300A · Flight Compartment WindowsSDR AU971596Windshield · delaminated(AUS) FIRST OFFICERS `B' WINDSCREEN DELAMINATED AND A SECTION OF THE OUTER PANE SEPARATED. SUSPECT CAUSED BY MOISTURE INGRESS INTO CONDUCTIVE LAYER CAUSING ARCING.Sep 18, 1997 · Bac 146200A · Flight Compartment WindowsSDR AU971597Windshield · cracked(AUS) FIRST OFFICERS `A' WINDSCREEN ARCING FOLLOWED SHORTLY BY CRACKING OF THE OUTER PANE. SUSPECT CAUSED BY MOISTURE INGRESS.Sep 18, 1997 · Bac 146200A · Flight Compartment WindowsSDR 98ZZZM48Engine · failedNR 4 ENGINE FAILED ON INITIAL T/O ROLL. NFF ON INITIAL RUN, NFF ON TEARDOWN. NO HISTORY ON ENGINE SINCE FAILURE. CLOSED, NO CONCLUSION.Sep 16, 1997 · N156TR · Bag BAE146200A · Engine (Turbine/Turboprop)SDR 98ZZZM91Engine · failedNR 4 ENGINE FAILED ON INITIAL TAKEOFF ROLL. (M)Sep 16, 1997 · N156TR · Bag BAE146200A · Engine (Turbine/Turboprop)SDR AU971412Fire Bottle · empty(AUS) APU FIRE BOTTLE EMPTY. SUSPECT CAUSED BY CORROSION ON HEAD ANDFILL FITTINGS ALLOWING BOTTLE TO LEAK.Sep 13, 1997 · Bac 146300A · Fire Bottle, FixedSDR CA970923012Combustion Liner · cracked(CAN) REMOVAL OF COMBUSTION TURBINE MODULE REVEALED TOTAL 360 DEG SEPARATION OF INNER LINER AT THE SPOT WELD LINE AT HEADER MARRY-UP POINT. INNER LINER REMAINED SECURED TO 1ST NOZZLE ATTACH LIP WHEN OUTER LINER AND HEADER REMOVED WITH NOZZLE. NO CHANGE IN ENSep 12, 1997 · Turbine Engine Combustion SectionSDR CA970922002Idler Gear · worn(CAN) METAL FOUND IN CHIP DETECTORS CONDITION 3. ON TEARDOWN IDLER GEAR AND SPIRAL GEAR SHAFT (P/N 208313603) WERE FOUND BADLY WORN.Sep 9, 1997 · Turbine Engine Reduction GearSDR CA970904006Bearing · failed(CAN) LOUD BANG WAS HEARD FROM THE APU AND AUTO SHUTDOWN OCCURRED. BORESCOPE REVEALED METAL PARTICLES IN THE COMBUSTION CAN. THE FORWARD FAN BEARING IS SUSPECT. APU REPLACED AND SENT TO MANUFACTURER FOR REPAIR.Aug 27, 1997 · Bag BAE146200A · APU Core EngineSDR AU971500Switch · faulty(AUS) LANDING GEAR SELECTOR VALVE AND ACTUATOR ASSEMBLY MICROSWITCH ACTUATING ARM PIVOT PIN DISLODGED.Aug 20, 1997 · Bac 146200A · Landing Gear Position and WarningSDR CA970904004Fuel Oil Heater · leaking(CAN) FUEL SMELL FROM THE OIL TANK. VISCOSITY FOUND TO BE 85 PERCENT. FUEL/OIL HEAT EXCHANGE LEAKING INTERNALLY. EXCHANGER REPLACED AND ENGINE PUT ON WATCH FOR METAL CONTAMINATION.Aug 20, 1997 · Engine Fuel/Oil CoolerSDR CA970904005Seal · leaking(CAN) OIL FOUND POOLING IN THE NR3 ENGINE SUPER CHARGER, NR9 SEAL REPLACED.Aug 20, 1997 · Turbine Engine Reduction GearSDR AU971499Gear · slipping(AUS) LANDING GEAR SELECTOR VALVE ACTUATOR TORQUE LIMITER SLIPPING.Aug 1, 1997 · Bac 146200A · Landing Gear SelectorSDR 98ZZZM94Fuel Control · failedNR 1 ENGINE FAILED AT CRUISE. MECH AND INSPECTION WENT TO MLI FROM ATW. REPLACED THE FCU AND LP FUEL PUMP.Jul 31, 1997 · N179US · Bag BAE146200A · Fuel Control/Turbine EnginesSDR AU971402Skin · damaged(AUS) WING UPPER SKIN LOWER SURFACE DAMAGED IN AREA OF STRINGERS AT RIBS 0 AND 2 ON BOTH LH AND RH SIDES. FOUND DURING INSPECTION IAW ER BA6-57-10-9A.Jul 21, 1997 · Bac 146200A · Wing, Plate/SkinSDR CA970731030Flex Line · rptured(CAN) DURING CRUISE THE PILOT NOTED A LOSS OF THE NR2 GREEN HYDRAULIC SYSTEM FLUID. ALTERNATE GEAR EXTENSION CARRIED OUT. INSPECTION FOUND THE NR2 DOWN LOCK JACK FLEX LINE HAD RUPTURED NEAR THE END FITTING.Jul 18, 1997 · Bag BAE146200A · Landing Gear Retraction/Extension SystemSDR CA970722002Seal · leaking(CAN) #2 ENGINE #1 SEAL LEAKING OIL. EVIDENCE FOUND AT THE BLEED BAND 2 HOURS AFTER SHUT DOWN. POOR ODOR IN CABIN. AIRCRAFT OPERATED UNDER MEL WITH #1 PACK INOPERATED UNTIL ENGINE CAN BE REPLACED.Jul 17, 1997 · Turbine Engine Compressor SectionSDR AU971512Manifold · cracked(AUS) NO2 ENGINE INBOARD FUEL MANIFOLD CRACKED. FOUND DURING EDDY CURRENT INSPECTION IAW ER ALF73-10-20 PART 2B.Jul 3, 1997 · Bac 146200A · Engine Fuel DistributionSDR CA970620002Spacer · bulged(CAN) AFTER TAKEOFF THE CREW REPORTED HIGH VIBRATIONON #1 ENGINE. THE AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION RUNUP FOUND VIBRATION AT 1.3 ACCOMPANIED BY AN ENGINE WHINE. THE ENGINE WAS REPLACED. INVESTIGATION FOUND A BULGE IN THE SPACER BETWEEN THE Jun 18, 1997 · Turbine SectionSDR AU970921Circuit Breaker · arced(AUS) RH WINDSHIELD HEATING SYSTEM PHASE `B' SUPPLY CIRCUIT BREAKER DAMAGED FROM INTERNAL ARCING.Jun 17, 1997 · Bac 146200A · AC Power Distribution SystemSDR CA970624032Fuel Return · fractured(CAN) ON TAKEOFF ROLL, WHEN POWER ADVANCED TO 85 PERCENT N2, THE #3 ENGINE EXPERIENCED A POWER ROLL-BACK. TAKEOFF ABORTED. FUEL FOUND LEAKING AT A FITTING ON THE FORWARD SIDE OF THE FIREWALL AT THE 6 O'CLOCK POSITION. THE LEAK WAS TRACED TO A CRACKED ECOLOGY TJun 15, 1997 · Bag BAE146200A · Engine DrainsSDR AU971020Fire Bottle · mis wired(AUS) NO4 ENGINE FIRE EXTINGUISHER BOTTLE SQUIB WIRES WB14 AND WB15 CROSSED BETWEEN CONNECTOR RF (442-00-00)Jun 12, 1997 · Bac 146100A · Fire Bottle, FixedSDR CA970702026Impeller · worn(CAN) #2 ENGINE REMOVED DUE TO NO TGT MARGIN. ENGINE HAS RUN WITH NARROW MARGIN SINCE LAST INSTALLATION 775 HOURS PRIOR. SHROUD HAD BURNS, CRACKS AND IRREGULAR HOLE APPROXIMATELY 5" LONG TRAVELING CIRCUMFERENTIALLY AT MID-SPAN DUE TO CONTA CT WITH IMPELLER. Jun 9, 1997 · Turbine SectionSDR AU970632Resolver · out of adjust(AUS) GREEN SYSTEM FLAP CONTROL UNIT RESOLVER OUT OF ADJUSTMENT - LH FLAP ASYMMETRY BRAKE SOLENOID SHORT CIRCUITMay 28, 1997 · Bac 146300A · Trailing Edge Flap Control SystemSDR 97ZZZX3006Fuel Control · malfunctionedDEN - FLT 655 - NR 4 ENGINE, 2 PERCENT LOW N1 AT TAKEOFF AT 882 DEGREES, TARGET 92.5, ACTUAL 90.5 PERCENT N1. UNABLE TO DUPLICATE, NR 4 ENGINE CHECKED AT 871C AT RATED TAKEOFF. REMOVED AND REPLACED NR 4 FCU PER BANDOCH (PRECAUTIONARY) RESISTANCE CHECK OK. BMay 18, 1997 · N610AW · Bag BAE146200A · Fuel Control/Turbine EnginesSDR AU971092Actuator · faulty(AUS) LH AND RH WING OUTER ANTI-ICE VALVES BOTH HAD SLIPPING CLUTCHES.May 16, 1997 · Bac 146300A · Airfoil Anti/De-ice SystemSDR AU970493Bearing · failed(AUS) ENGINE OIL PRESSURE LOSS - SUSPECT NO4/5 BEARING FAILUREMay 14, 1997 · Bac 146100A · Turbine SectionSDR AU970479Drive · failed(AUS) NO3 ENGINE OIL PUMP DRIVE FAILED - METAL CONTAMINATION OF OIL SYSTEM - DURING GEARBOX REMOVAL A THREADED INSERT WAS PULLED FROM THE FAN HOUSINGMay 9, 1997 · Bac 146200A · Turbine Engine Accessory DriveSDR CA970508002Fuel Contrl Unit · faulty(CAN) ENGINE SLOW TO SPOOL UP ON TAKEOFF. AT ALTITUDE ROLL BACK OF 20 PERCENT OCCURRED AND RUMBLE NOISE HEARD. PRECAUTIONARY ENGINE SHUTDOWN WAS CARRIED OUT. POST FLIGHT CORRECTIVE ACTION WAS REPLACEMENT OF THE ENGINE FUEL CONTROL UNIT. THE ENGINE WAS RUN UP SApr 30, 1997 · Fuel Control/Reciprocating EnginesSDR CA970508003Engine · failed(CAN) #3 ENGINE WAS SHUTDOWN DUE TO LOSS OF OIL PRESSURE INDICATION. CAUTION LIGHT ILLUMINATED AND THE OIL PRESSURE INDICATED IN THE RED. PRIOR TO THIS THERE WAS A BRIEF OVERSPEED WARNING. UNABLE TO SUPPLY ADDITIONAL INFORMATION TO THE CAUSE AS THE ENGINE IS OApr 30, 1997 · Engine (Turbine/Turboprop)SDR CA970423002Wire · broken(CAN) FLAPS STUCK AT 5 DEGREES AND WOULD NOT MOVE. WIRE FOUND BROKEN AT YELLOW SYSTEM RESOLVER.Apr 16, 1997 · Bag BAE146200A · Trailing Edge Flap Control SystemSDR CA970423003Switch · shorted(CAN) ON LANDING WARNING LIGHTS INDICATED YELLOW SPOILERS NOT DEPLOYING. FOUND CB POPPED AND WOULD NOT STAY RESET. MICRO SWITCH CH32 FOUND FAILED.Apr 16, 1997 · Bag BAE146200A · Drag Control SystemSDR CA970423025Housing · burnt(CAN) ENGINE OIL VERY DARK IN COLOR, FAILED TAN CHECK, 4/5 BEARING HEAVY COKING, CT MODULE REPLACED.Apr 16, 1997 · Turbine Engine Compressor SectionSDR AU970798Tire · failed(AUS) LH MAIN LANDING GEAR NO2 MAIN WHEEL TYRE DEFLATED DUE TO SIDEWALL FAILURE.Apr 15, 1997 · Bac 146200A · TireSDR CA970423024Connector Pipe · corroded(CAN) FUEL LEAK FOUND AT #4 ENGINE PYLON. LEAK DUE TO EXTENSIVE CORROSION ON THE I.D. OF THE CONNECTOR WHERE THE 'O' RING SEAL CONTACTS THE INNER SURFACE OF THE CONNECTOR. FLEET INSPECTION BEING CONDUCTED.Apr 12, 1997 · Engine Fuel DistributionSDR 97ZZZX3146Engine · failedICT - FLT 571 - NR 3 ENGINE VIBRATION INDICATED 3.0. ENGINE SHUT DOWN. TAKEOFF ABORTED AT 60 KNOTS. AIRCRAFT REMOVED FROM SERVICE FOR A 3 ENGINE FERRY TO ATW FOR REPAIRS.Apr 10, 1997 · N156TR · Bag BAE146200A · Engine (Turbine/Turboprop)SDR CA970423023Seal · failed(CAN) NR 1 SEAL LEAKING ON THE COMPRESSOR SECTION, REPLACED.Apr 8, 1997 · Turbine Engine Compressor SectionSDR AU970410Nozzle · damaged(AUS) NO3 ENGINE SECOND STAGE TURBINE BLADES (3OFF) HAD APPROXIMATELY ONE THIRD OF THE BLADE MISSING AND THREE MORE BLADES WITH APPROXIMATELY ONE QUARTER OF THE BLADE MISSING - INVESTIGATION FOUND THAT THE SECOND STAGE TURBINE NOZZLE REAR INNER SHROUD WAS CRACApr 4, 1997 · Bac 146200A · Turbine SectionSDR CA970422013Wheel Half · cracked(CAN) DURING NDT INSPECTION, FOUND CRACKED INNER WHEEL HALF AT TIE BOLT HOLE. AT PREVIOUS BUILD UP CORROSION WAS FOUND IN SAME AREA AND TREATED AS PER C.M.M.Apr 1, 1997 · Bag BAE146200A · Wheel/Ski/FloatSDR AU970313Seal · leaking(AUS) ANTI-ICE AIR DUCT SEALS LOCATED AT REAR END OF SPINE LEAKING -NO4 ENGINE AIR VALVE CONNECTOR. SUSPECT MOISTURE INGRESSMar 29, 1997 · Bac 146200A · Pneumatic Distribution SystemSDR AU970773Clutch · slipped(AUS) LANDING GEAR SELECTOR VALVE ACTUATOR CLUTCH SLIPPING.Mar 22, 1997 · Bac 146200A · Landing Gear SelectorSDR AU970708Wire · cold solder(AUS) ENGINE FIRE EXTINGUISHER CARTRIDGE FIRING CIRCUIT WIRE HAD HIGH RESISTANCE DUE TO POORLY SOLDERED JOINT AK-A1. WIRE IS LOCATED BETWEEN CIRCUIT BREAKER 1WB9 AND AIRCRAFT ELECTRICAL GROUND VIA UPPER PRODUCTION BREAK 221-01-00 (CONTACT AK-A1).Mar 15, 1997 · Bac 146200A · DC Power Distribution SystemSDR AU970308Bearing · failed(AUS) NO3 ENGINE NO2 BEARING FAILED - METAL CONTAMINATION OF OIL SYSTEMMar 10, 1997 · Bac 146200A · Turbine Engine Compressor SectionSDR AU970208Flap System · malfunctioned(AUS) FLAPS WOULD NOT RETRACT - FLAPS WERE RESET AND THEN OPERATED NORMALLY - NO FAULT EVIDENT ON FLAP COMPUTERMar 6, 1997 · Bac 146200A · Trailing Edge Flap Control SystemSDR AU970181Oil System · contaminated(AUS) NO4 ENGINE OIL FILTER BYPASS BUTTON EXTENDED - FURTHER INVESTIGATION FOUND HEAVY CONTAMINATION OF THE CHIP DETECTOR AND OIL DISCOLOURATIONFeb 27, 1997 · Bac 146200A · Turbine Engine Oil SystemSDR AU970154Hose · leaking(AUS) GREEN SYSTEM HYDRAULIC PRESSURE HOSE CHAFING ON COWLING DOOR- LOSS OF HYDRAULIC FLUIDFeb 26, 1997 · Bac 146100A · Hydraulic System, MainSDR 97ZZZX3113O Ring · leakingNR 1 ENGINE, NR 2 OIL SCAVENGE LINE LEAK AT DIFFUSER, 5 O'CLOCK POSITION. REMOVED AND REPLACED O-RING. REFERENCE ENGINE INSTALLATION CHECK LIST FOR LEAK CHECK.Feb 22, 1997 · N608AW · Bag BAE146200A · Turbine Engine Oil SystemSDR AU970772Loom · chafed(AUS) NO1 GENERATOR PHASE `B' GENERATOR FEEDER CABLE AND NEUTRAL CURRENT TRANSFORMER SHORT CIRCUITING DUE TO CHAFING ON `P' CLIPFeb 17, 1997 · Bac 146200A · AC Generation SystemSDR 97ZZZX3111Fuel Manifold · leakingNR 2 ENGINE HAS FUEL LEAKING FROM LOWER PORTIONS OF EACH MANIFOLD ON START, NOT EVIDENT DURING RUN. TRANSFERRED TO W/O BV 7244, RII.Feb 15, 1997 · N608AW · Bag BAE146200A · Engine Fuel Distribution
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