Allison 250-C30
Service difficulty reports · 402
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 = '250C30' 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 = '250C30' 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 AC2A086269Shaft Seal · leakingPART IS LEAKING OIL. OIL SEAL HAD BECOME DISPLACED FROM FUEL PUMP DRIVE SEAL BORE IN ENGINE GEARBOX. OIL WAS COMING OUT OF THE FUEL PUMP CASE DRAIN, THROUGH THE DRAIN HOSE AND OUT OF THE DRAIN CLUSTER ON THE BELLY OF THE AIRCRAFT. FUEL PUMP WAS REMOVED, THE DRSDR TU32003F00000Bearing · wornBEARINGS WORN BEYOND LIMITS WITH SHORT AMOUNT OF FLIGHT TIME ON COMPONENT.SDR TU32003F00001Bearing · debondedELASTOMERIC DEBONDED FROM BEARING HOUSING. (SN/ LK0326, LK1013, LK0308, LK0810)SDR TU32003F00002Bearing · debondedELASTOMERIC DEBONDED FROM BEARING HOUSING.SDR TU32003F00004Bearing · debondedRUBBER DEBONDED BEYOND LIMITS.SDR TU32003F00005Liner · wornATTACHING END AT FLEXTURE WORN AND NEEDS BUFFER PAD REPLACED.SDR TU32003F00006Mount · wornATTACHING END OF FLEXTURE WORN AND NEEDS BUFFER PAD REPLACED.SDR ALGA085104Fuel Nozzle · defectiveENGINE LOW MOANING/ BURBLING NOISE WITH N1 OSCILLATIONS AT FLIGHT IDLE.SDR ALGA085090Coupling · gougedFOUND N1 COUPLING INTERNAL SPLINES CHIPPED/GOUGED AND O.D. RUSTED.SDR HEEA084911Poppet Valve · failedRECEIVED FROM STOCK AND FOUND END OF VALVE SURFACE VERY UNEVEN. VALVE WOULD NOT SEAT IN UNIT.SDR ALGA084136Bearing Race · corrodedFOUND CORROSION PITTING ON INNER POWER TURBINE SHAFT BEARING RACE.SDR ALGA084131Coupling · gougedFOUND SPLINES DAMAGED FROM MAUFACTURING PROCESS OF N1 COUPLING.SDR ALGA084090Coupling · gougedFOUND DEEP GOUGES ON SPLINES OF N1 COUPLING ON POWER TURBINE.SDR ALGA084074Bearing Race · corrodedFOUND CORROSION PITTING ON POWER TURBINE SHAFT INNER RACE.SDR SVB2003F00000Seal · leakingRAPID SERVO LEAK EMPTIED NR 1 HYDRAULIC SYSTEM IN LESS THAN 6 MINUTES. COLLECTIVE CYCLIC SERVO CONTINUED TO FUNCTION ON NR 2 HYDRAULIC SYSTEM BUT TAIL ROTOR CONTROLS WERE INOPERATIVE REQUIRING A FORCED LANDING.SDR HEEA083665Check Valve · damagedCHECK VALVE FLARE END NICKED CAUSING LEAK. REPAIRED.SDR ALGA082901Nozzle · mismanufacturedFOUND NR 1 WHEEL BLADE PATH FINAL MACHINED OVERSIZED. DIM.= 6.275 RETURNED PART.SDR HEEA083060Element · mismanufacturedENGINE OIL FILTER WILL NOT FIT IN THE HOUSING. THE HOLE WHERE THE O-RING GOES IS TOO SMALL ON ONE END. SCRAPPED.SDR YT22003F00000Idler Link · damagedREPLACED COLLECTIVE IDLER LINK ASSEMBLY.SDR Y2T2003F00000Bearing · failedBEARING FAILED, 262.6 HOURS, AFTER INSTALLATION.SDR 2003FA0000082Warning Light · activatedENGINE MAGNETIC PLUG WARNING LIGHT CAME ON DURING FLIGHT. PILOT LANDED AIRCRAFT AND MAINTENANCE WAS NOTIFIED. MECHANIC INSPECTED MAGNETIC PLUGS AND FOUND PASTE ON UPPER ENGINE GEARBOX MAGNETIC CHIP PLUG. MECHANIC CLEANED AND REINSTALLED PLUG PERFORMED MAINTSDR 2003FA0000600Scavenge Pump · inoperativeDURING BUCKET SLING TRAINING, AIRCRAFT STARTED SMOKING. PILOT PERFORMED PRECAUTIONARY LANDING AND OVERTORQUED AIRCRAFT. MAINTENANCE WAS NOTIFIED AND DISPATCHED TO RETRIEVE AIRCRAFT FROM LOCATION. AIRCRAFT ENGINE WAS INSPECTED AND FOUND THAT THE NR 8 SCAVENGSDR IBU2003F00000Governor · failedGOVERNOR FAILED CAUSING ENGINE RPM, TORQUE, TOT. TO NOT REMAIN STABLE. FLUCTUATION OF RPM WERE SEVERE ENOUGH TO CAUSE AIRCRAFT TO YAW LT AND RT WITH INCREASE AND DECREASE OF RPM.SDR YTRR081619Shaft · wornOIL PUMP SHAFT SPLINES WORN TO THE POINT OF ROTOR TACH FAILURE.SDR HEEA082628Filter · defectiveNR 1 ENGINE PC FILTER HANG STARTS ON ENGINE RINSE. REPLACED WITH SERVICEABLE FILTER.SDR HEEA082629Filter · cloggedNR 1 ENGINE PC FILTER CLOGGING WITH WATER ON ENGINE WASH AND CAUSING HANG STARTS. REPLACED WITH SERVICEABLE FILTER.SDR HEEA082630Check Valve · failedENGINE SMOKING ON SHUTDOWN. SCRAPPED CHECK VALVE.SDR HEEA082631Fuel Control · malfunctionedFUEL CONTROL DECEL TIME TOO LONG, ON/ABOUT 70 SECONDS. IN SHOP REPAIR.SDR HEEA082632Governor · malfunctionedGOVERNOR TORQUE SPLITS. IN SHOP REPAIR.SDR ALGA081610Wheel · mismanufacturedTHIS IS A NEW PART. PART CAN NOT BE DYNAMIC BALANCED, DUE TO BEING TOO HIGH OUT OF BALANCE AND OFF SCALE ON THE X10 SCALE AND ON UPPER SCALE.SDR AC2A081568Gearshaft · brokenN-1 WENT TO ZERO, ENGINE OUT AUDIO CAME ON, ENGINE CHIP LIGHT ONSDR TU3R12048Bearing · delaminatedDURING MAIN ROTOR TRACK AND BALANCE FLIGHTS, THE CREW WOULD HAVE THE RIDE, ACCEPTABLE BY FEEL AND BY READINGS, AND RELEASE THE AIRCRAFT FOR SERVICE. THE NEXT FLIGHT THE RIDE WOULD BE WORSE. DURING THE INSPECTION OF THE ROTOR SYSTEM, THE HYDRAULIC CART WAS CSDR YT2R631366Seal · leakingTAILROTOR GEARBOX SEAL, LEAKING UPON INSTALL.SDR Y3AR527YFitting · crackedDURING 100 HOUR ANNUAL INSPECTION FOUND LT UPPER FITTING ON THE FUSELAGE SIDE OF THE TAILBOOM ATTACHMENT CRACKED. REMOVED AND REPLACED FITTING (PN 206031329103S) MM. FITTING IS CRACKED ON THE OUTBOARD FLANGE BETWEEN THE 2 AFT RIVETS.SDR AUS20021040Longeron · cracked(AUS) TAIL BOOM LONGERON CRACKED AROUND TWO RIVET HOLES.SDR AUS20020972Seal · damaged(AUS) ENGINE REMOVED DUE TO METAL CONTAMINATION. INVESTIGATION FOUNDTHE ROTATING POWER TURBINE LABYRINTH SEAL CONTACTED THE NO6 AND NO7 BEARING SUMP STATIONARY SEALS. WEAR PATTERN ON THE SEAL AREAS ARE OVAL SUGGESTING THAT THE ENGINE HAD BEEN SUBJECTEDTO A HEASDR DNW2002F00000Coupling · wornSPLINES ON DRIVE COUPLING WORN, SPLINED ON PUMP SHOW SIGNS OF MINOR WEAR DIFFICULT TO SEE INSIDE DRIVE COUPLING AT DEGREASE.SDR EGR2002F00005Chip Detector · activatedNR 2 ENGINE CHIP LIGHT ILLUMINATED WHEN INITIATING APPROACH, LIGHT COULD NOT BE RESET PER SMSP. AIRCRAFT LANDED AT NEARBY AIRPORT. NO FAILURE OF SYSTEMS OR COMPONENTS FOUND. MAINTENANCE REMOVED UPPER CHIP PLUG ON NR 2 ENGINE AND FOUND 1 SMALL FLAKE. CLEANESDR 2003FA0000338Stiffener · crackedFOUND SUBJECT STIFFENER AND WEB CRACKED DURING MAINTENANCE EVENT. GAINED ACCESS AND FOUND RIGHT HAND BEAM ALSO CRACKED. BEAM AREA WAS HIDDEN UNTIL DISASSEMBLY SHOWED FURTHER DAMAGE. SUGGEST THAT BETTER ATTENTION IS PAID TO THIS AREA ON INSPECTIONS, ESPECIALSDR 2002FA0000871Nut · unsecurePILOT COMPLAINED OF MEDIUM FREQUENCY VIBRATION. VIBRATION WAS ISOLATED TO THE TAIL ROTOR DRIVE SHAFT 5TH SEGMENT. THE MS21042L4 NUT THAT SECURES THE HANGER BEARING ON THE SHAFT HAD LOST TORQUE. THIS ALLOWED THE BEARING INNER RACE TO SPIN ON THE SHAFT, RUINISDR HEEA078713Valve · stuckSOLENOID VALVE STUCK OPEN. REPLACED WITH SERVICEABLE VALVE.SDR HEEA078704Turbine Wheel · damagedTURBINE REMOVED FOR OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED LIGHT SULFIDATION ON BACK SIDE OF 1ST STAGE WHEEL LEADING EDGE BLADES. SCRAPPED.SDR HEEA078973Plenum · crackedCRACKED AT BOTTOM AND NUTPLATE BROKE LOOSE FROM PLENUM.SDR HEEA079027Nozzle · damagedINTERMITTENT STARTING PROBLEMS. REPLACED WITH SERVICEABLE FUEL NOZZLE.SDR HEEA079030Bulb · inoperativeFADEC MANUAL SWITCH BULB INOPERATIVE. REPLACED WITH SERVICEABLE PART.SDR HEEA079031Nozzle · failedN1, TOT, AND TORQUE OSCILLATION AFTER 20 MINUTES OF FLIGHT. REPLACED WITH SERVICEABLE UNIT.SDR HEEA079060Nozzle · bentENGINE NOZZEL TUBE BENT. REPLACED WITH SERVICEABLE PART.SDR HEEA079061Filter Element · cloggedENGINE OIL FILTER CLOGGED, OIL BYPASS INDICATOR POPPING. REPLACED WITH SERVICEABLE PART.SDR HEEA079062Filter · cloggedBYPASS BUTTON EXTENDED ON DAILY. ENGINE OIL FILTER CLOGGED. REPLACED WITH SERVICEABLE PART.SDR HEEA078702Bearing · failedREMOVED DUE TO ENGINE RAN WITH LOW OIL PRESSURE. NR 3 AND 4 BEARING FAILURE.
Back to Allison 250-C30