Allison 250-C47B
Service difficulty reports · 1,403
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 = '250C47B' 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.
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 = '250C47B' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR HEEA083548Clip · corrodedENGINE OUTER CLIP RUSTED. SCRAPPED.SDR HEEA083549Clip · corrodedENGINE OUTER CLIP RUSTED. SCRAPPED.SDR HEEA083644Valve · stickingBURNER DRAIN VALVE STICKING. REPAIRED.SDR HEEA083645Housing · damagedFLUCTUATING OIL PRESSURE. REPAIRED.SDR HEEA083646Valve · leakingVALVE LEAKS DURING ENGINE START UP. REPAIRED.SDR ALG2003F00012Transducer · malfunctionedON TAKEOFF, PILOT NOTICED TORQUE EXCEEDED THE LIMIT WITH LOW POWER SETTINGS, HE RETURNED TO FREEPORT. THE MECHANIC CHECK THE ECU WITH MAINTENANCE TERMINAL. NO FAULTS WERE RECORDED, CHANGED THE TORQUE TRANSDUCER AND AIRCRAFT WAS RETURNED TO SERVICE.SDR ALG2003F0000FChannel · brokenFOUND ON A DAILY INSPECTION 12/15/2002. CHANNEL HAS 12 INCHES AND 1 PIECE BROKEN OFF APPROXIMATELY 4 INCH. FABRICATE CHANNEL FROM THICKER MATERIAL.SDR ALG2003F00028Engine · failedDURING CRUISE FLIGHT, ENGINE CHIP LIGHT ILLUMINATED DURING CRUISE FLIGHT. THE PILOT FOLLOWED THE EMERGENCY CHECKLIST AND UPON LANDING THE MECHANIC REMOVED AND REPLACED THE TURBINE AND GEARBOX. AIRCRAFT WAS THEN RETURNED TO SERVICE.SDR ALG2003F00013Chip Detector · dirtySHORTLY AFTER TAKEOFF, AFTER DROPPING THE PASSENGERS ON THE SUPER TANKER, THE PILOT TOOK OFF AND WAS ENROUTE, THE TRANSMISSION CHIP LIGHT ILLUMINATED, THE PILOT NOTIFIED VENICE BASE BY RADIO. UPON LANDING THE MECHANIC REMOVED THE MAST BEARING CHIP PLUG AND FOSDR ALG2003F00007Frame · crackedDISCOVERED WHEN FRAME WAS REMOVED TO REMOVE AND REPLACE RIVETS ON TAILBOOM ATTACH FITTING. (RIGHT UPPER FITTING) IT HAS BECOME GOOD PRACTICE TO CHECK THIS AREA BECAUSE OF PAST PROBLEMS. THE FRAME HAS BEEN FOUND TO CRACK IN THIS SAME AREA ON ALL AIRCRAFT THATSDR ALG2003F00019Door · crackedLT ENGINE BAY DOOR LOWER RECTANGLE SCREEN IS CRACKED AND UPPER 2ND FRONT FORWARD SQUARE SCREEN CRACKED. LT AND RT ENGINE BAY DOORS. CHAFING OCCURRING ON LOWER AND FORWARD EDGE OF DOORS. LATCHES EXCESSIVE WEAR. FASTENERS ON FORWARD AFT EDGE HAS EXCESSIVE WESDR ALG2003F218Skin · crackedDURING DAILY INSPECTION, CRACKS, CORROSION, BROKEN SPOT WELDS, HINGES WORN OUT. SKIN CORROSION AT SPOT WELDS BECAUSE OF NON-ALCLAD MATERIAL. HEAVIER GAUGE MATERIAL ON STRINGERS NEEDED.SDR CA030108003Disc Pack · cracked(CAN) ONE TAIL ROTOR DISC CRACKED. TOTAL TEN DISC IN PACK.SDR ALG2003F0000AStringer · crackedIN FOR C/W ASB 4070254, WEIGHT OF CARBON FIBER DOORS. CRACK IS OCCURING ON FORWARD LEFT STRINGER AT CLIP ANGLE AND STRINGER RIVETED LOCATION, WEIGHT OF DOORS AND VIBRATION. HEAVIER GAUGE STRINGER MATERIAL TO ACCOMODATE WEIGHT OF DOORS.SDR ALG2003F000IStringer · cracked11/11/02 IN FOR C/W ASB 407-02-54. WEIGHT OF CARBON FIBER DOORS. STRINGER, CRACK IS OCCURRING ON FORWARD LEFT STRINGER AT CLIP ANGLE AND STRINGER RIVETED LOCATION, WEIGHT OF DOORS AND VIBRATION. HEAVIER GAUGE STRINGER MATERIAL TO ACCOMMODATE WEIGHT OF DOORSSDR CA021104001Seal · misinstalled(CAN) SWASHPLATE BEARING SEAL SHALL BE INSTALLED WITH SEALANT APPLIED ON MATING SURFACES. SEALANT WAS NOT APPLIED ON ALL MATING SURFACES CAUSING THE SEAL SPIN IN THE CAP ASSEMBLY TO LEAK GREASE.SDR S642002F00000Bracket · crackedDURING AN ANNUAL INSPECTION THE MECHANIC PULLED DOWN ON THE CARGO HOOK AND THE LT HAND HARD POINT BRACKET FAILED. LEAVING THE CARGO HOOK BEAM SUPPORTED ONLY BY THE RIGHT BRACKET. SHOULD THIS BRACKET FAIL, DURING SLING WORK THE RT BRACKET WOULD NOT BE ABLE TOSDR ALG2003F00050Warning Light · illuminatedIN FLIGHT, FUEL TRANSFER LIGHT ILLUMINATED IN FLIGHT, FLIGHT WAS DIVERTED TO WD 70 AND DISCOVERED FUEL OF 148 LBS. THE PILOT CALLED HOUMA AND 35 GALLONS OF FUEL WAS FLOWN TO THE AIRCRAFT.SDR ALG2003F00020Blade · damagedWHILE HOVERING ONTO THE PARKING PAD, THE PILOT HEARD AN UNUSUAL SOUND FROM THE AIRCRAFT, UPON LANDING THE SUBSEQUENT INSPECTION REVEALED DAMAGE TO THE COMPRESSOR BLADE CAUSED BY A SMALL PIECE OF INTAKE SHELF INGESTED BY THE ENGINE. THE ENTIRE ENGINE WAS REMOVSDR IIF2002F00001Bearing · separatedELASTOMERIC PORTION OF BEARING COMPLETELY DEBONDED FROM BASE. FOUND AT ROUTINE INSPECTION. BEARING IS ONE OF A BATCH OF DEFECTIVE BEARINGS MANUFACTURED BEFORE 1998. RECOMMEND THAT BEARINGS BE BONDED WITH BETTER MATERIALS OR ADHESIVE.SDR 2002FA0001069Bearing · separatedELASTOMERIC PORTION OF BEARING COMPLETELY DEBONDED FROM BASE. FOUND AT ROUTINE INSPECTION. THIS BEARING IS ONE OF A BATCH OF DEFECTIVE BEARINGS MANUFACTURED BEFORE 1998. RECOMMEND THAT BEARING BE BONDED WITH BETTER MATERIAL OR ADHESIVE.SDR ALG2002F00065Shaft · wornSHAFT ON FREEWHEEL UNIT HAS WORN SPLINES BEYOND LIMITS.SDR GFV2002F00000Duct · crackedEXHAUST DUCT CONTINUALLY CRACKS FROM THE FLANGE, RUNNING TO THE END OR OUTLET OF THE DUCT. DUCT ALSO EXHIBITS BLUING FROM EXCESS HEAT.SDR ALG2003F000AStringer · brokenSTRINGERS BROKEN BY CENTER AND FORWARD HINGES.SDR ALG2003F000BStringer · brokenSTRINGER BROKEN BY CENTER AND FORWARD HINGES.SDR ALG2003F000CStringer · crackedSTRINGER CRACKED AND CORRODED BEYOND REPAIR.SDR ALG2003F000DStringer · crackedSTRINGER, CRACKED AND CORRODED BEYOND REPAIR.SDR ALG2003F000EFrame · corrodedFRAME, CORRODED AND CRACKED BEYOND REPAIR.SDR ALG2003F000FFrame · crackedFRAME, CRACKED, CORRODED, NO REPAIRABLE.SDR ALG2003F000GFrame · crackedFRAME, CRACKED, CORRODED, NO REPAIRABLE.SDR ALG2003F000HFrame · crackedFRAME, CRACKED, CORRODED, NO REPAIRABLE.SDR CA020814004Case · mismanufactured(CAN) MAIN ROTOR GEARBOX HAS A CASTING FLAW IN CASE.SDR ALG2003D00032Blade · crackedDISCOVERED DURING ROUTINE INSPECTION. LEADING EDGE SHEATH CRACKED CHORDWISE AT STATION 132.SDR ALG2003F00070Bearing · failedDURING CRUISE FLIGHT THE PILOT FELT A SEVERE VIBRATION IN THE AIRFRAME AND PERFORMED A PRECAUTIONARY LANDING ON A NEARBY PLATFORM. FORWARD BEARING ON NR 2 TAILROTOR DRIVESHAFT BLOWER ASSEMBLY FAILED.SDR ALG2003F00033Support Angle · crackedDURING DAILY INSPECTION, CRACKED IN RADIUS DUE TO POOR FIT. LEFT LOWER SUPPORT ANGLE FOR HORIZONTAL STABILIZER. TB 4070133 WAS CW AT THIS DATE.SDR 2002FA0000844Gearbox · mismanufacturedUPON INSPECTION BEFORE GEARBOX ASSEMBLY. SCAVENGE TUBE CUT OUT NOT WIDE ENOUGH, CAUSING TUBE TO RUB. 2 EACH STUDS NOT FULLY SEATED AT N1 PICKUP AREA. OIL PUMP INSERTS NOT CLEANED OUT. ASSURE PROPER MANUFACTURING AND INSPECTED BY QA BEFORE LEAVING FACTORY.SDR HEEA080206Bleed Valve · failedENGINE HAD A SUDDEN INCREASE IN TOT CAUSING A LOW POWER ENGINE. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA080207Bleed Valve · failedHIGH TOT. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA080209Hmu · failedWHEN ADVANCING THE THROTTLE UP FROM IDLE, COMPRESSOR STALLS. TURNING ON ENGINE ANTI-ICE WILL CAUSE PROBLEM TO GO AWAY.SDR HEEA079915Fuel Control · malfunctionedENGINE NOT RESPONDING TO MOVEMENT IN ENG. TRIM MOTOR.SDR CA020702010Skin · cracked(CAN) CRACK IN TAILBOOM SKIN FOUND ON LEFT HAND SIDE EXTENDING FROM FORWARD RIVET ON UPPER LEFT HAND ANGLE SUPPORT P/N 407-023-800-117 TO NEXT RIVET UP ON TAILBOOM SKIN. TAILBOOM REMOVED FROM SERVICE AND IS BEING SHIPPED TO BELL HELICOPTERS FOR EVALUATION. REPSDR ALG2002F00053Gear · mismanufacturedENGINE WAS REMOVED DUE TO MAKING METAL. UPON DISASSEMBLY AND INSPECTION OF PARTS, FOUND T/M GEAR TEETH RADIUS ROUGH AND UNFINISHED MACHINING CAUSING PINION GEAR TO GALL. IMPROPER AND UNFINISHED MACHINING OF T/M GEAR CAUSING PINION GEAR TEETH TO GALL. ASSURESDR ALG2002F00051Bearing · failedBEARING FAILED IN FLIGHT. MAJOR BEARING FAILURE.SDR HEEA079890Fuel Nozzle · failedFUEL NOZZLE FAILED BENCH CHECK.SDR HEEA080085Liner · damagedCOMPRESSOR LINER DAMAGED PRODUCING TORQUE FLUCTUATIONS. REPLACED WITH SERVICEABLE PART.SDR ALGA079855Gearshaft · galledDUE TO T/M JOURNAL SUPPORT STUDS BACKING OUT OF COVER AN UNUSUAL WEAR PATTERN OF SPALLING AND GALLING OCCURRED ON GEAR TEETH.SDR ALGA079856Shaft · looseFOUND T/M GEAR, BEARING JOURNAL SHAFT AND SUPPORT LOOSE IN COVER ASSEMBLY. FOUND ALL 4 STUDS ON JOURNAL SUPPORT PULLED OUT AND 1 EACH WITH NO THREADS LEFT IN WORN BORE. THIS ALLOWED GEAR TO WEAR IN AN UNUSUAL MANNER, WHICH COULD HAVE RESULTED IN A CATASTROPHSDR HEEA080010Bleed Valve · failedTORQUE FLUCTUATION DURING CRUISE FLIGHT. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA080011Bleed Valve · failedENGINE HAS LOW POWER AND HIGH TOT. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA080012Bleed Valve · failedHIGH TOT. REPLACED WITH SERVICEABLE BLEED VALVE.
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