Allison 250-C30P
Service difficulty reports · 646
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 = '250C30P' 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 = '250C30P' 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 HEEA083303Bleed Valve · failedBLEED VALVE PRODUCING HIGH TOT. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA083305Bleed Valve · failedBLEED VALVE PRODUCING HIGHER THAN NORMAL TOT. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA083306Bleed Valve · malfunctionedAFTER LANDING AND TAKE OFF, TOT INCREASED 30 DEGREES ABOVE NORMAL AND AFTER A FEW MINUTES RETURNED TO NORMAL THAN RAN 30 DEGREES HIGHER THAN NORMAL. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA083307Bleed Valve · failedBLEED VALVE PRODUCING COMPRESSOR STALL. REPLACED WITH SERVICEABLE BLEED VALVE.SDR HEEA083310Solenoid Valve · damagedSOLENOID VALVE CAUSING CIRCUIT BREAKER TO POP AND SMOKE. REPLACED WITH SERVICEABLE PART.SDR HEEA083316Check Valve · smokeTURBINE OIL PRESSURE CHECK VALVE SMOKING ON SHUTDOWN. REPAIRED.SDR HEEA083317Check Valve · damagedCHECK VALVE HAS DAMAGED FITTING THREADS. REPAIRED.SDR HEEA083324Bearing · defectiveN2 RPM INCONSISTENT. GOVERNOR HAD INCONSISTENT OVERSPEED. SPLIT BODIES, CLEANED, AND INSPECTED PARTS. FOUND DEFECTIVE ROLLER BEARINGS ON GOVERNOR LEVER. REPLACED WITH NEW PARTS AND UNIT TESTED SATISFACTORY.SDR HEEA083325Governor · erraticGOVERNOR PRODUCING ERRATIC OPERATION. REPAIRED.SDR HEEA083326Governor · fluctuatesGOVERNOR PRODUCING TORQUE AND TOT FLUCTUATES. UNABLE TO VERIFY DIFFICULTY REPORTED. NO DISCREPANICES NOTED.SDR HEEA083327Fuel Control · malfunctionedFUEL CONTROL UNIT PRODUCING INTERMITTENT START. UNABLE TO VERIFY DIFFICULTY REPORTED. NO DISCREPANICES NOTED.SDR HEEA083328Fuel Control · failedFUEL CONTROL UNIT PRODUCING HANG STARTS AND AFTER ONE ADJUSTMENT AIRCRAFT FLAMED OUT. START DERICHMENT ADJUSTER JAM NUT LOOSE. ALSO FOUND START DERICHMENT AND START ACCELERATION ADJUSTER ADJUSTED ALL THE WAY TO THE COUNTER CLOCKWISE STOP. RESET BOTH ADJUSTMESDR HEEA083329Fuel Control · malfunctionedN1 HUNG AT 20 PERCENT N1 AND COULD NOT BE INCREASED. SECOND ATTEMPT, START WAS NORMAL. REPAIRED.SDR HEEA083330Fuel Control · malfunctionedN2 WOULD NOT STAY AT SET RPM. FOUND N1 RESET GUIDE AND ROD ASSY WORN. REPAIRED FUEL CONTROL.SDR HEEA083331Fuel Control · malfunctionedFUEL CONTROL PRODUCING HIGH STARTING TEMPS. ADJUST DOWN TO COLD ADJUST UP TO HOT. IN SHOP REPAIR.SDR HEEA083095Igniter Box · inoperativeIGNITER BOX INOPERATIVE. WILL NOT LIGHT OFF. TO BE SENT TO VENDOR FOR REPAIR.SDR HEEA083109Filter · damagedFILTER ASSY BYPASS BUTTON REMAINS PARTIALLY EXTENDED AT ALL TIMES. TO BE SENT TO VENDOR.SDR HEEA083014Duct · tornENGINE COMPRESSOR INDUCER BLEED DUCT TORN. SCRAPPED.SDR ALG2003F00005Starter Gen · failedDURING FLIGHT, IN FLIGHT STARTER GENERATOR FAILED AND WOULD NOT RESET, THE PILOT FOLLOWED THE EMERGENCY CHECKLIST, UPON LANDING THE MECHANIC REMOVED AND REPLACED THE STARTER GENERATOR AND THE AIRCRAFT WAS RETURNED TO SERVICE.SDR ALG2003F00014O-Ring · leakingON POST FLIGHT PILOT FOUND SUDDEN LEAKAGE OF FLOAT BOTTLE WITH INDICATION THAT INFLATION WOULD NOT BE POSSIBLE IF NOT REPAIRED. THE MECHANIC REMOVED AND REPLACED THE FILL VALVE O-RING AND SERVICED. THE FLOAT BOTTLE AND AIRCRAFT WAS RETURNED TO SERVICE.SDR CA030108001Fuel Control · malfunctioned(CAN) NORMAL TAKEOFF. AFTER REDUCING COLLECTIVE TO 70 PERCENT, TURBINE AND ROTOR RPM AT 105 PERCENT. BEEPED DOWN WITH NO RESPONSE, COLLECTIVE WAS LOWERED TO SLOW DOWN AND ROTOR RPM WAS NOW 115-120 PERCENT. PILOT ROLLED BACK THROTTLE TO DISENGAGE GOVERNOR, RPSDR ALG2003F00018Skin · corrodedDURING DAILY INSPECTION, CORROSION IN EVERY SEAM, INTAKE SHELF MOUNTING FLANGE AND INSIDE FORMED SCOOP.SDR ALG2003F00031Bleed Valve · failedDURING TAKE OFF, COMPRESSOR STALLED, PILOT ABORTED THE FLIGHT, UPON LANDING THE MECHANIC REMOVED AND REPLACED THE BLEED VALVE, ALSO THE MECHANIC CHECKED FUEL NOZZLES AND CHECKED ALL AIR LINES, THE FUEL SYSTEM WAS BLED AND THE AIRCRAFT RETURNED TO SERVICE.SDR ALG2003F0000CFitting · crackedDURING INSPECTION, FOUND FITTING CRACKED EMANATING FROM RIVET HOLE.SDR CA021129007Tube · chafed(CAN) AN OIL LEAK APPEARING TO BE ORIGINATED FROM BRAIDED STEEL TRANSMISSION RETURN LINE FROM THE FREEWHEELING UNIT. CLOSER INSPECTION REVEALED THAT ADJACENT ALUMINUM TUBE WAS CHAFED. VERIFIED PROPER CLAMPING OF THE AFFECTED PARTS, NO FAULT WAS FOUND. APPARSDR ALG2003F00047Fuel Control · leakingDURING POST FLIGHT, THE MECHANIC FOUND FUEL CONTROL LEAKING, HE REMOVED AND REPLACED THE FUEL CONTROL, AIRCRAFT WAS LEAK CHECKED AND RETURNED TO SERVICE.SDR ALG2003F00049Pump · failedDURING FLIGHT, PILOT REPORTED PARTIAL HYDRAULIC FAILURE, UPON LANDING THE MECHANIC REMOVED AND REPLACED THE HYDRAULIC PUMP AND HYDRAULIC FILTER, THE AIRCRAFT WAS CHECKED FOR LEAKS AND OPS CHECK WAS SATISFACTORY. AIRCRAFT WAS RETURNED TO SERVICE.SDR ALG2003F00046Servo · undertorquedDURING FLIGHT, PILOT REPORTED COLLECTIVE STIFF AT 60 PERCENT TORQUE, UPON LANDING, THE MECHANIC REMOVED AND REPLACED THE COLLECTIVE SERVO AND THE AIRCRAFT WAS RETURNED TO SERVICE.SDR PG92002F00004Scavenge Pump · failedDURING OPERATIONS, AIRCRAFT HAD FLUCTUATING OIL PRESSURE AND TORQUE. PILOT LANDED AIRCRAFT AND CALLED MAINTENANCE. MECHANIC INSPECTED AIRCRAFT AND PERFORMED GROUND RUN. MECHANIC DETERMINED THAT ENGINE OIL SCAVENGE PUMP WAS NOT SENDING ADEQUATE AMOUNT OF OILSDR YTRR080718Shaft · wornOIL PUMP SPLINES WORN EXCESSIVELY.SDR YTRR080719Shaft · wornOIL PUMP SPLINES WORN EXCESSIVELY.SDR YTRR080720Shaft · wornOIL PUMP SPLINES WORN EXCESSIVELY.SDR HEEA080515Seal · leakingENGINE REMOVED DUE TO FLUCTUATING OIL PRESSURE, SMOKE ON SHUTDOWN AND OIL BLOWING FROM GEARBOX. UPON INSPECTION OF GEARBOX PARTS NOTED AIR OIL SEPERATOR HYDRODYNAMIC SEAL LEAKING. SCRAPPED SEAL.SDR HEEA080513Liner · bentDURING HOT SECTION INSPECTION THE LINER WAS FOUND BENT.SDR HEEA080639Elbow · leakingENGINE LINE ELBOW LEAKING. REPLACED WITH SERVICEABLE PART.SDR HEEA080660Lead · chafedINGNITER LEAD CHAFED. REPAIRED.SDR HEEA080671Chip Detector · failedCHIP DETECTOR DID NOT PASS INSPECTION REQUIREMENT. SCRAPPED.SDR HEEA080400Stud · brokenREMOVED DUE TO COMPRESSOR SCROLL STUD BROKEN. UPON INSPECTION OF COMPRESSOR PARTS NOTED WORN TANGS AND SLOTS, CHIPS AND PITS ON CARBON FACE.SDR PG92002F00003Fuel Control · surgesENGINE FUEL CONTROL REMOVED AND REPLACED DUE TO COMPRESSOR SURGE FROM 62 PERCENT TO 100 PERCENT.SDR 510RT062702Tach Generator · failedHYDRAULIC FAILURE DURING CRUISE FLIGHT.SDR PG92002F00002Seal · damagedTURBINE REMOVED AND REPLACED DUE TO SMOKING DURING SHUTDOWN.SDR HEEA079894Bearing · failedENGINE REMOVED DUE TO METAL IN OIL. PARTS REPLACED IN COMPLIANCE WITH CEBA-72-3217 R4.SDR HEEA079895Bearing Cage · failedENGINE REMOVED DUE TO METAL IN OIL. PARTS REPLACED IN COMPLIANCE WITH CEBA-72-3217 R4.SDR ALGA079858Gear · spalledSPALLING AND GALLING ON GEAR TEETH DUE TO IMPROPER MESHING OF TEETH.SDR CA020726015Channel · chafed(CAN) DURING A 100 HOUR INSPECTION UPPER LT CHANNEL LOCATED ON REAR OF FUSELAGE WHERE TAILBOOM ATTACHES TO FUSELAGE. CHANNEL FOUND TO HAVE CRACK PRETUDING FROM A RIVET HOLE. CHANNEL WAS REMOVED AND REPLACED NEW.SDR HEEA079409Filter · damagedENGINE OIL FILTER BYPASS BUTTON WEAK.SDR HEEA079410Filter · damagedENGINE OIL FILTER BYPASS INDICATOR WILL NOT EXTEND.SDR EGIA1Compressor · seizedWHEN PILOT ATTEMPTED TO START ENGINE, STARTER WOULD NOT ROTATE COMPRESSOR. AFTER TROUBLESHOOTING START SYSTEM, DISCOVERED COMPRESSOR SEIZED. COMPRESSOR SECTION WAS REMOVED AND STILL COULD NOT BE ROTATED BY HAND. NO OIL CONTAMINATION IN OIL SYSTEM SUGGESTINGSDR HEEA079098Filter · leakingENGINE OIL FILTER LEAKING FROM HOSE.SDR LCF2002F00000Bearing · seizedPILOT ATTEMPTED TO START ENGINE WITH NO ROTATION NOTED. AFTER TROUBLESHOOTING START SYSTEM COMPRESSOR WAS FOUND TO BE SIEZED. COMPRESSOR WAS REMOVED AND STILL NOT ABLE TO ROTATE. NO METAL CONTAMINATION FOUND TO SUGGEST BEARING FAILURE. AXIAL COMPRESSOR DOE
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