Allison 501-D22A
Service difficulty reports · 231
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 = '501D22A' 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 = '501D22A' 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 CA970226042Sword Fitting · cracked(CAN) R/H WING OWS 303 SWORD FITTING CRACKED. REPLACED.SDR CA970226043Rib Cap · cracked(CAN) CENTRE WING STA 178.8 R/H INBOARD UPPER RIB CAP FITTING CRACKED AT UPPER FORWARD TRUSS MOUNT ATTACHMENT HOLE. REPLACED.SDR CA970226044Stringer · cracked(CAN) CENTRE WING STRINGER 18, BL 57 AND FS 559 INSIDE CENTRE DRY BAY CRACKED - 2.0" ON THE LOWER FLANGE. REPAIRED.SDR CA961128014Torquemeter · loose(CAN) IN CRUISE NR 3 ENGINE TORQUE INDICATION FAILED. POST FLIGHT MAINTENANCE INSPECTION FOUND THE TORQUE PICKUP TO BE RUBBING ON THE TORQUE SHAFT AND SOME TORQUEMETER ATTACHMENT NUTS MISSING AT THE REDUCTION GEARBOX ATTACH POINT. AIRCRAFT FERRIED FOR ENGINESDR CA961104005Starter · worn jaws(CAN) #3 ENGINE WOULD NOT ENGAGE DURING START SEQUENCE. JAWS EXCESSIVELY WORN, REPLACED.SDR CA961104006Starter · worn jaws(CAN) #1 STARTER WOULD NOT ENGAGE AT ENGINE START. TEETH ON STARTER JAWS WORN, REPLACED.SDR CA961024009Detection Unit · intermittent(CAN) IN CRUISE #3 ENGINE FIRE WARNING ILLUMINATED. ENGINE SHUT DOWN. LANDED WITHOUT INCIDENT. FIRE DETECTION UNIT REPLACED.SDR CA961112016Detection Unit · intermittent(CAN) IN CRUISE #3 ENGINE FIRE WARNING LIGHT CAME ON. ENGINE SHUT DOWN IN FLIGHT, AIRCRAFT LANDED WITHOUT INCIDENT. FAULT WITH FIRE DETECTION UNIT. REPLACED.SDR CA961112015Wiring Harness · intermittent(CAN) ON ROTATION #3 CHIP DETECTOR LIGHT ON INTERMITTENTLY. POWER WAS REDUCED AND DETECTOR LIGHT OUT. LANDED WITHOUT INCIDENT. WIRING HARNESS PROBLEM. REPAIRED.SDR CA961024007Screwjacks · dirty(CAN) ON APPROACH LH MAIN LANDING GEAR WOULD NOT EXTEND WHEN GEAR SELECTED DOWN. APPROACH WAS ABORTED AND ATC CONFIRMED LH MAIN LANDING GEAR DOOR WAS CLOSED AND GEAR NOT VISIBLE. LH GEAR MANUALLY LOWERED AND LANDING CARRIED OUT. SCREWJACK CONTAMINATED WITH MOISDR SRAA960904Engine · malfunctionedON TAKEOFF ROLL, NR 3 ENGINE WAS FOUND SLOW TO RESPOND TO THROTTLE MOVEMENT, AT APPROXIMATELY 40 KTS TAKEOFF WAS REJECTED, NO EXCESSIVE BRAKING FORCE USED. PERFORMED ENGINE RUNUP AND FOUND NR 3 ENGINE OPERATED NORMALLY.SDR SRAA960801B-Nut · looseAFTER TAXIING OUT FOR FLIGHT 1206 FROM HOW, NR 2 ENGINE NACELLE OVERHEAT WARNING LIGHT CAME ON. SHUT DOWN ENGINE AND RETURNED TO BLOCK. FOUND LOOSE 'B' NUT ON NR 2 ENGINE. PERFORMED ENGINE RUN, SYSTEM OPS CHECKED GOOD PER MM CH 75. (M)SDR CA960812009Valve Housing · cover cracked(CAN) DURING CRUISE SMOKE BEGAN FILLING THE CABIN. FLIGHT CONTINUED AND LANDED WITHOUT INCIDENT. MAINTENANCE INVESTIGATION FOUND #3 PROPELLER VALVE HOUSING COVER WAS CRACKED AND LEAKING OIL. FRICTION ON SLIP RINGS GENERATED SMOKE WHICH WAS INGESTED BY THE PRESSDR CA960826042Valve Housing · cover cracked(CAN) DURING FLIGHT SMOKE BEGAN TO FILL THE CABIN. THE AIR CONDITIONING SYSTEM AND RH AC BUS WERE ISOLATED. FLIGHT CONTINUED TO DESTINATION. POST FLIGHT INSPECTION FOUND #3 PROPELLER VALVE HOUSING COVER WAS CRACKED AND LEAKING OIL. FRICTION ON SLIP RING GENERASDR SRAA960709Engine · rpm fluxON TAKEOFF ROLL FOR FLIGHT 1205 OUT OF COF, NR 4 ENGINE HAD 2 PERCENT RPM FLUX WITH ALL OTHER PARAMETERS FLUXING ALSO, REJECTED TAKEOFF WITHOUT FURTHER INCIDENT.SDR CA960703008Indicator · malfunction(CAN) ON DESCENT WITH RUDDER TRIM AT ZERO IT WAS NOTED THAT THE TRIM INDICATOR HAD DRIFTED TO 10 DEGREES RIGHT. A FEW MINUTES LATER INDICATION RETURNED TO ZERO WITH NO EFFECT TO FLIGHT CONTROL IN EITHER INSTANCE. INDICATOR REPLACED.SDR CA960508004Lines · blocked(CAN) DURING CLIMBOUT, THERE WAS AN OIL LOSS INDICTION FOR NR 4 ENGINE. IN-FLIGHT SHUTDOWN WAS CARRIED OUT AND A 3 ENGINE LANDING CONDUCTED WITHOUT INCIDENT. REAR COMPRESSOR, FRONT TURBINE BEARING SCAVENGE LINES WERE FOUND BLOCKED WITH CARBON. LINES WERE BLSDR SRAA59604Turbine Blade · damagedDURING CRUISE TO ARI FLT NR 1204, NR 2 ENGINE HAD LOW TORQUE AND HIGH FUEL FLOW, ACCOMPLISHED ENGINE SHUT DOWN AS PRECAUTIONARY PRIOR TO LANDING, AIRCRAFT LANDED WITHOUT INCIDENT. FOUND NR 2 ENGINE HAD TURBINE BLADES DAMAGED. REPLACED NR 2 ENGINE AND PERFORMSDR SRAA59603Engine · damagedFLT NR 1 AD08 REPORTED, NR 1 ENGINE BLEED AIR CAUSED AIR CONDITIONING TO EMIT FUMES, CLOSED NR 1 BLEED VALVE TO ELIMINATE FUMES. ON LANDING, CARGO COMPARTMENT FILLED UP WITH SMOKE AFTER ENGINES WERE REVERSED ON ROLL OUT. FOUND NR 1 ENGINE HAS CRACKED TURBINESDR CA960508003Propeller · failed(CAN)IN CRUISE, #4 PROPELLER PITCH LOCKED ENGINE SHUTDOWN. UNDER INVESTIGATIONSDR CA960508005Valve Housing · malfunction(CAN)ON APPROACH, TORQUE ON #4 ENGINE COULD NOT BE REDUCED BELOW 5000 LBS. ON LANDING, PROP FAILED TO GO INTO BETA RANGE, ENGINE SHUTDOWN. #4 VALVE HOUSING REPLACED.SDR SRAA49605Bleed Valve · dirtyFLIGHT 3904 - REPORTED NR 2 ENGINE FLAME OUT EN ROUTE MOMBASA, SECURED ENGINE PER AOM, PROCEEDED TO DESTINATION AND LANDED WITHOUT INCIDENT. MX CLEANED DIRTY 5TH STAGE BLEED VALVES, REINSTALLED, ACCOMPLISHED ENGINE PERFORMANCE RUNS AND RETURNED TO SERVICE. (SDR CA960409001Presure Line · cracked(CAN)IN CRUISE, LOW OIL QUANTITY LIGHT ILLUMINATED FOR THE #2 ENGINE. ENGINE WAS SHUT DOWN AND AIRCRAFT LANDED. MAINTENANCE INVESTIGATION CONFIRMED CRACKED OIL PRESSURE LINE. LINE REPLACED.SDR CA960222006Seal · cut(CAN) AT TOP OF DESCENT, #4 PROP LOW OIL LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN IN FLIGHT AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INVESTIGATION REVEALED A LEAKING BLADE ROOT SEAL. THE PROPELLER ASSEMBLY WAS REPLACED FOR COMPANY CONVENIENCE.SDR SRAA29602Vent Tube · crackedFLT UPA3060 - ON CLIMB-OUT FROM LTN, NR 3 ENGINE NACELLE OVEHEAT LIGHT ILLUMINATED, SHUT DOWN NR 3 ENGINE AND ACCOMPLISHED AIR TURN BACK TO LTN. FOUND COMPRESSOR VENT TUBE CRACKED, REPLACED LINE AND PERFORMED ENGINE RUN-UP, LEAK CHECKED GOOD PER MM CHAPTER 75SDR CA960111014Blade · missing(CAN)DURING A ROUTINE A-CHECK, A CRACK WAS FOUND IN THE #3 ENGINE TAIL PIPE AND TURBINE REAR BEARING SUPPORT. FURTHER INVESTIGATION SHOWED A PIECE MISSING FROM THE FOURTH STAGE TURBINE BLADE. DAMAGE WAS CONTAINED. TURBINE SENT FOR STRIP REPORT.SDR CA951206007Blades · damaged(CAN)DURING A THREE ENGINE FERRY FLIGHT ON TAKEOFF, A LOUD BANG WAS HEARD, FOLLOWED BY 1000 DEGREES C TIT INDICATION. THE THROTTLE WAS PULLED BACK AND NO OTHER INDICATIONS WERE NOTED. ON DESCENT, WHEN POWER WAS PULLED BACK, AN NTS OCCURRED WITH HIGH FUEL FLOW SDR SRAA109507Fuel Heater · defectiveON CLIMB-OUT FOR FLIGHT ADN5 OUT OF MIA, NOTICED OIL QUANTITY STARTED TO DROP AFTER LEVELING OFF, OIL COULD BE SEEN COMING OUT OF DRAIN MAST. SHUT DOWN NR 3 ENGINE AND COMPLETED AIR TURN BACK TO MIA. FOUND FUEL HEATER STRAINER DEFECTIVE, REPLACED UNIT, PERFOSDR SRAA109506Bearing · failedDURING FLIGHT AD73, NR 3 ENGINE LOST OIL PRESSURE, SHUT DOWN ENGINE AND LANDED AT CHS SAFELY. FOUND NR 3 ENGINE HAD TURBINE BEARING FAILURE, REPLACED NR 3 ENGINE AND PERFORMED ENGINE RUN UP, OPS CHECKED GOOD PER J/C 6101, 6104, 7103 AND 7001, 7002. (M)SDR SRAA99516Red Gearbox · failedRMS - FLT ADT4 - DURING FLIGHT, NR 1 ENGINE REDUCTION GEARBOX FAILED. SHUT DOWN NR 1 ENGINE AND LANDED SAFELY. FOUND METAL IN MAG PLUGS AT REDUCTION GEARBOX. REPLACED NR 1 ENGINE AND PROPELLER PER J/C 7103, 6101. PERFORMED ENGINE RUN-UP, SYSTEM OPS CHECKEDSDR SRAA79509Rod End · brokenCHARLESTON - FLT ADY2 - DURING FLIGHT, NR 3 ENGINE WENT TO FULL POWER HIGH, FUEL FLOW, T.I.T., AND TORQUE WOULD NOT RESPOND TO THROTTLE MOVEMENT. SHUT DOWN NR 3 ENGINE. FOUND ROD END AT COORDINATOR TO FUEL CONTROL UNIT SEPARATED FROM ROD. REPLACED ROD ASSEM
Back to Allison 501-D22A