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 ALG2004F00015Indicator · failedDURING TAKE OFF FUEL QUANTITY GUAGE LOST POWER, RECYCLED QUANTITY CIRCUIT BREAKER 3 TIMES, QUANTITY INDICATOR CAME ON AND AT THE SAME TIME RT TRANSFER PUMP CAUTION ILLUMINATED. RECYCLED RT PUMP CIRCUIT BREAKER BUT COULD NOT EXTINGUISH TRANSFER PUMP LIGHT. QUSDR ALG2004F00013Spring · misalignedSLIGHT VIBRATION ON LANDING, CHECKED ROTOR SYSTEM ON POST FLIGHT AND FOUND FRAHM DAMPER SPRING MISALIGNED. MAINTENANCE FOUND BROKEN SPRING IN FRAHM DAMPER. REMOVED AND REPLACED FRAHM DAMPER.SDR CA040816005Combustion Liner · cracked(CAN) COMBUSTION LINER FOUND CRACKED DURING TURBINE REMOVAL. NO CRACKS ALLOWED IN THIS AREA.SDR ALG2004F00009Connector · failedWHEN AIRCRAFT WAS PICKED UP TO A HOVER. AS AIRCRAFT CAME TO A HOVER, ENGINE OIL PRESSURE WENT HIGH. AIRCRAFT WAS LANDED BACK ON PAD, SHUT DOWN AND CONTACTED MAINTENANCE. MAINTENANCE REPLACED ENGINE OIL PRESSURE TRANSDUCER, DID NOT FIX PROBLEM. THEN REPLACESDR BAQA093856Inverter · inoperativeWARRANTY. UNIT IS NOT GIVING A/C OUTPUT VOLTAGE. REPLACED WITH SERVICABLE UNIT. 03/18/2004SDR ALG2004F00008Chip Detector · contaminatedDURING TAKEOFF, TRANSMISSION LIGHT CAME ON FOR 30 SECONDS THEN IT WENT OFF. MAINTENANCE FOUND CARBON PARTICLES ON PLUG, CHANGED FILTER AND OIL GROUND RAN LEAKED CHECK GOOD.SDR 2004FA0000271Bearing · seizedBEARING SEIZED DURING TRAINING FLIGHT, RESULTING IN D/S FAILURE AND LOSS OF T/R CONTROL ALLOWING THE TAIL ROTOR BLADES TO STRIKE TAILBOOM. (WP17200403114)SDR ALG2004F00007Wire · damagedWHILE LIFTING OFF FOR TAKE OFF, THE TRANSMISSION TEMPERATURE GAUGE FLUCTUATED FROM 0 TO MAX AND REMAINED AT MAX AFTER THROTTLE REDUCED TO IDLE. MAINTENANCE FOUND SHAFTED WIRE NUMBER E629A22 INSIDE CONNECTOR AT TRANSMISSION TEMPERATURE BULB. REPAIRED WIRE ANSDR BAQA092490Pump · intermittentEXCHANGE. FUEL PUMP OPERATING INTERMITTENTLY. REPLACED WITH SERVICALE UNIT. 02/02/2004SDR CA040816008Combustion Liner · cracked(CAN) CRACKS FOUND IN OUTER COMBUSTION CASE ARMPIT AREA ON NORMAL DAILY INSPECTION. NO CRACKS ALLOWED IN THIS AREA.SDR HEEA092745Gearbox · corrodedREMOVED DUE TO EXCESSIVE CORROSION ON MAIN HOUSING IN AREA AROUND CHIP PLUG, AIR BREATHER VENT AND AT HOLES WHERE SAFETY WIRE IS ATTACHED TO HOUSING. GEARBOX WAS OVERHAULED AT T.T. 2575.00 ON FORM TRACKING AND W/O BH2122TN. SEND GEARBOX TO MFG FOR WARRANTY RSDR ALGA091474Bearing · roughTURBINE SECTION BEARING FOUND TO BE ROUGH AFTER INSTALLATION.SDR CA040227005Turbine Wheel · failed(CAN) M 407 HELICOPTER HAD 3RD STAGE TURBINE WHEEL FAILURE IN FLIGHT. AIRCRAFT CRASHED. TURBINE WHEEL PART TIME 1144 HOURS SINCE NEW.SDR CA040227004Turbine Wheel · failed(CAN) 3RD TURBINE STAGE WHEEL BLADES SHED IN FLIGHT. PART TIME SINCE NEW : 2852 HOURS. PILOT IDENTIFIED FLIGHT PROBLEM AND LANDED IN AUTOROTATION.SDR E5W2003F00001Stud · crackedCRACK-LIKE INDICATIONS AT STUD RADIUS CONTINUING TO HOLES ON SOME OF THE STUDS. IMPERFECTIONS, DEFECTS DETECTED BY FLUORESCENT PENT.SDR CA031023007Drive Shaft · failed(CAN) PILOT HAD TAKEN OFF. SHORTLY THEREAFTER HEARD A THUMP FROM THE REAR FOLLOWED BY VIBRATION. ON REACHING FINAL DESTINATION INSPECTION REVEALED NR 5 TR DRIVE SHAFT BEARING 407-040-339-101 FAILED.OVERHEAT EVIDENCE ON THE HANGAR AND DAMAGE SUSTAINED TO THE RESDR E5W2003F00000Stud · crackedCRACK-LIKE INDICATION DETECTED AT STUD RADIUS. CRACK LIKE INDICATION FOUND BY FLUORESCENT MAGNETIC PARTICLE EXAMINATION.SDR ALGA089029Support · defectiveRECEIVED NEW FROM AVIALL. C/W PRESSURE CHECK,LEAKED INTERNALLY ON PRESSURE CHECK TEST. RETURNED PART TO VENDOR FOR WARRANTY EXCHANGE.SUBMITTED BY:PRESTON BARZARESDR AUS20030917Blade · cracked(AUS) TAIL ROTOR BLADE CRACKED CHORDWISE FROM WATER DRAIN HOLE LOCATED AT BLADE ROOT. CRACK LENGTH APPROXIMATELY 40MM (1.57IN).SDR ALGA088877Support · defectiveCOMPRESSOR SUPPORT LEAKING INTERNALLY ON PRESSURE CHECK TEST. RETURNED PART TO VENDOR FOR WARRANTY CREDIT.SDR ALG2003F00087Transmitter · failedIN LEVEL FLIGHT, CHECK INSTRUMENT LIGHT ILLUMINATED, I TOOK POWER AWAY AND THE LIGHT WENT OUT. CHECK INSTRUMENT LIGHT ILLUMINATED AGAIN AND THE TORQUE GAUGE CYCLED FROM ZERO TO PEGGED OUT. EXCEDANCE SHOWED 63 PERCENT OVER TORQUE. LOWERED TEMP TO 200 DEGREESSDR ALG2003F00088Indicator · malfunctionedIN LEVEL FLIGHT CHECK INSTRUMENT LIGHT ILLUMINATED, TOOK POWER AWAY AND THE LIGHT WENT OUT. CHECK INSTRUMENT LIGHT ILLUMINATED AGAIN AND THE TORQUE GAUGE CYCLED FROM ZERO TO PEGGED OUT EXCEDANCE SHOWED 63 PERCENT OVER TORQUE. LOWERED TEMP TO 200 DEGREES BELOSDR ALG2003F00092Connector · contaminatedIN FLIGHT, FADEC FAILED IN-FLIGHT, LIGHTS AND HORN SIMULTANEOUSLY HAD 2 TO 4 PERCENT DROP IN NP. MATCHED TORQUE IN CONTROLLED NP/NR WITH COLLECTIVE AND THROTTLE. MAINTENANCE CLEANED CONNECTOR ON COMPRESSOR SPEED SENSOR ON ENGINE. OPS CHECKED GOOD, AIRCRAFTSDR ALG2003F00091Indicator · malfunctionedIN CRUISE FLIGHT, EXCEDENCE ON MGT WITH CHECK INSTRUMENT LIGHT DURING CRUISE WITH INSTRUMENT INDICATOR IN THE GREEN (704 TO 714). THE MECHANIC CHECKED COMPUTER FOR EXCEDENCE, HAD NO EXCEDENCE OR FAULTS RECORDED, REPLACED INDICATOR MGT.SDR ALG2003F00090Chip Detector · malfunctionedDURING LANDING, TRANSMISSION LIGHT ILLUMINATED AS AIRCRAFT WAS LANDING ON EC 195, CHECKED CHIP PLUGS, FOUND NORMAL FUZZ C/W 30 MINUTE GROUND RUN, LEAK CHECKED GOOD. AIRCRAFT WAS RETURNED TO SERVICE.SDR ALGA088782Support · crackedSUPPORT CRACKED AT DZUS RECEPTICALES. PROBABLE CAUSE IS ASB407-02-54. REC. DOUBLERS AT RECEPTICALE AREAS.SDR ALGA088783Channel · crackedCHANNEL CRACKED LOWER EDGE AND MIDDLE DZUS RECEPTICALES AREA. PROBABLE CAUSE IS ASB407-02-54. REC. DOUBLERS AT RECEPTICALE AREAS.SDR ALGA088784Channel · crackedCHANNEL CRACKED LOWER EDGE AND MIDDLE CHANNEL. PROBABLE CAUSE IS ASB407-02-54. REC. DOUBLERS AT RECEPTICALE AREAS.SDR CA030725004Bearing · spalled(CAN) MAST REMOVED BECAUSE OF METAL CONTAMINATION, ROLLER FOUND SPALLED.SDR 2003FA0000815Bearing · failedTHIS WAS THE REAR OIL COOLER FAN SHAFT BEARING. THIS IS PART OF THE TAIL ROTOR DRIVE SYSTEM FOR THIS AIRCRAFT. THE BEARING SUFFERED A COMPLETE FAILURE. BEARING BALLS WERE FOUND ON THE AIRCRAFT OIL COOLER DECK AREA ALONG WITH PIECES OF BEARING CAGE. ONE BALSDR ALGA088104Gear · spalledREMOVED GEAR FOR EXCESSIVE SPALLING ON GEAR TEETH.SDR ALGA088105Gear · spalledREMOVED GEAR FOR EXCESSIVE SPALLING ON GEAR TEETH. REMOVED FOR WARRANTY CREDIT.SDR ALGA087896Pinion Gear · galledENGINE REMOVED DUE TO METAL IN OIL. CAUSE FOUND TO BE GALLING ON PINION GER TEETH. REMOVED AND REPLACED PINION GEAR.SDR ALGA087760Bearing · failedTAIL ROTOR TRANSMISSION REMOVED FOR METAL IN OIL, FOUND BEARING BREAKING DOWN. SUBMITTED BY: PRESTON BARZARESDR ALG2003F00098Indicator · malfunctionedON TAKE OFF, DURING CLIMB THE TORQUE INDICATION WENT TO 103 PERCENT FOR 3-5 SECONDS AND (CHECK) INSTRUMENT LIGHT ILLUMINATED. TORQUE WAS REDUCED TO 93 PERCENT WITH MGT OF 650 DEGREES. CLIMB SPEED WAS 500 FPM, AIRCRAFT WAS RETURNED TO BASE. THE MECHANIC TROUSDR HEEA087837Battery · burnedBATTERY CELL BURNED ON CHARGE. REPLACED WITH SERVICEABLE PART.SDR HEEA087835Bleed Valve · failedBLEED VALVE MAKING ENGINE RUN HOT. REPLACED WITH SERVICEABLE PART.SDR ALG2003F00066Hmu · leakingDURING REFUELING. AFTER A/C WAS REFUELED OFFSHORE AT WC-560. THE MECHANIC NOTICED A STEADY FLOW OF FUEL FROM THE OVERFLOW DRAIN LINE. HE INSPECTED THE LEAK AND FOUND THE HMU LEAKING. HE REMOVED AND REPLACED THE HMU AND COMPLIED WITH A LEAK CHECK AND AIRCRASDR HEEA087829Cartridge · failedLEFT BOOST LIGHT ILLUMINATED. REPLACED WITH SERVICEABLE PART.SDR HEEA087834Seat · tornSEAT TORN. REPLACED WITH SERVICEABLE PART.SDR HEEA087830Cover · tornRT INSIDE TORN AND DETERIORATED. REPLACED WITH SERVICEABLE PART.SDR HEEA087831Tube · corrodedFUEL SYSTEM TUBE HAS CORROSION PITTING UNDER SLEEVE DUE TO IMPROPER PROTECTION DURING MANUFACTURING PROCESS. REPLACED WITH SERVICEABLE PART.SDR HEEA087832Door · corrodedINTAKE COWLING DOOR IS CORRODED AND CHAFED BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.SDR HEEA087459Fuel Nozzle · intermittentFUEL NOZZLE HAS INTERMITTENT DELAYED STARTS. REPLACED FUEL NOZZLE.SDR HEEA087460Igniter · burnedDELAYED STARTS. IGNITER BURNED. REPLACED IGNITER.SDR HEEA087462Igniter · malfunctionedDELAYED LIGHT OFF. REPLACED IGNITER.SDR HEEA087463Igniter · wornIGNITER WORN. REPLACED IGNITER.SDR HEEA087464Igniter · wornIGNITER PRODUCING DELAYED LIGHT OFFS DUE TO WORN. REPLACED IGNITER.SDR HEEA087465Hose · corrodedFUEL HOSE HAS CORROSION AT SLEEVE ON BOTH ENDS. REPLACED HOSE.SDR HEEA087469Hose · chafedHOSE ASSY HAS BEEN CHAFED TO THE STEEL BRAIDS FROM THE ENGINE COWLING SUPPORT. REPLACED HOSE.
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