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 LR7A08082Fuel Control · intermittentON LANDING ROLL OUT, NR 2 ENGINE FLAMED OUT WHEN SELECTED INTO REVERSE. REMOVED AND REPLACED FUEL CONTROL, COORDINATOR AND GENEVA LOC ACTUATOR IAW AMM 73-1-4 PG 201-203, LOG PAGE 27338 ITEM 11.SDR CA080213010Seal · torn(CAN) ON TAKEOFF FROM AIRPORT, THE CREW OBSERVED A LOW OIL INDICATION ON THE NR 1 PROPELLER. THE AC RETURNED TO POINT OF DEPARTURE AND LANDED WITHOUT FURTHER PROBLEM. MAINT REPLACED THE NR 1 PROPELLER ASSY. THE AC WAS RETURNED TO SERVICE AFTER SATISFACTORY LESDR LR7A08022Fuel Control · malfunctionedDURING DESCENT TO PANC, FLIGHT CREW REPORTED NR 3 ENGINE FLAMED OUT. NR 3 FUEL CONTROL AND COORDINATOR REPLACED PER ALLISON MM 73-1-4 PG 201-203 AND 73-3-0 PG 201-202. OPS CHECK GOOD IAW LAC JOB CARD HN7101.SDR SIMA200733911Engine · odorON TAKEOFF APPROX 500 ', LAV SMOKE ILLUMINATED WITH ODOR OF SMOKE. FLIGHT ATTENDANT REPORTS HAZE BY LAV, AT 5000' LIGHT EXTINGUISHED. ODOR SUBSIDED. A/C RETURNED TO ORD. REMOVED AND REPLACED RT ENGINE ASSY IAW W/C 71-000-00 OPERATIONAL AND LEAK CHECK GOSDR CA070904003Trunnion · cracked(CAN) DURING THE A-CHECK INSPECTION, MAINTENANCE DETECTED A CRACKED RT NOSE LANDING GEAR TRUNNION FITTING. THE AIRCRAFT WAS RE- POSITIONED FOR PART REPLACEMENT. (TC NR 20070904003)SDR CA070720008Compressor · eroded(CAN) DEPARTING DESTINATION, THE CREW NOTED A COMPRESSOR STALL CONDITION ASSOCIATED WITH HIGH TGT ON NR 1 ENGINE. THE CREW CARRIED OUT A PRECAUTIONARY SHUTDOWN, RETURNED TO POINT OF DEPARTURE AND LANDED WITHOUT FURTHER PROBLEM. MAINTENANCE FOUND SIGNIFICANT SDR LR7A07057Bolt · shearedNR 4 ENGINE FLAMED OUT DURING DESCENT. FOUND CONTROL DRIVE BRACKET (ANTI-ROTATION) BOLTS SHEARED, AND EXCESSIVE PLAY ON PUMP HOUSING GEAR. REPLACED DRIVE BRACKET BOLTS IAW HAMILTON STANDARD P5059 PG 1-402, REPLACED NR 4 PUMP HOUSING IAW HAMILTON STANDARD MM SDR CA070601001Skin · cracked(CAN) DURING PRE-FLIGHT CHECK PRIOR TO DEPARTING, CRACKING WAS OBSERVED IN THE AFT FUSELAGE SKIN IN THE AREA OF STATION 946. THE AIRCRAFT HAS BEEN FERRIED FOR REPAIR. (TC NR 20070601001)SDR LR7A07031Engine · flamed outFLIGHT CREW REPORTED, THE NR 4 ENGINE FLAMED OUT AND WENT INTO FEATHER ON DESCENT TO LICZ. MAINTENANCE REMOVED AND REPLACED NR 4 PROPELLER VALVE HOUSING ON FLIGHT LOG PAGE 26683 WITH UNSATISFACTORY RESULTS. AIRCRAFT FERRIED FROM LICZ TO ETAR, LOG PAGE 26684.SDR CA070514001Unknown · cracked(CAN) AT FL220 APPROXIMATELY 20 MINUTES FROM DESTINATION THE AIRCRAFT EXPERIENCED A LOSS OF PRESSURIZATION. THE CREW DESCENDED TO 10,000 AND THE AIRCRAFT CONTINUED AND LANDED WITHOUT FURTHER PROBLEM. INVESTIGATION DETERMINED THE SOURCE OF THE PRESSURIZATION TOSDR CA070504006Fitting · cracked(CAN) DURING INSPECTION, A CRACKED LT NLG TRUNNION SUPPORT WAS DETECTED AND THE AIRCRAFT IS CURRENTLY UNDERGOING REPLACEMENT OF THE FITTING. (TC NR 20070504006)SDR CA070216005Oil System · low pressure(CAN) IN CRUISE FLIGHT, THE CREW OBSERVED THAT THE OIL QUANTITY WAS DROPPING ON NR 2 ENGINE. AFTER VISUAL CONFIRMATION THAT OIL WAS EXITING THE OVERBOARD DRAIN, THE ENGINE WAS SHUTDOWN. THE AIRCRAFT LANDED WITHOUT FURTHER PROBLEM. MAINTENANCE REPLACED THE ENGSDR CA070111001Switch · malfunctioned(CAN) DURING DEPARTURE THE RT MLG CONTINUED TO INDICATE DOWN AND LOCKED AFTER THE GEAR WAS SELECTED UP. THE AIRCRAFT CONTINUED TO DESTINATION, ENROUTE THE GEAR WAS CONFIRMED UP. THE GEAR WAS VISUALLY CONFIRMED AND THE AIRCRAFT LANDED WITHOUT FURTHER PROBLEM. SDR CA061228002Gasket · failed(CAN) AFTER DEPARTING AND CLIMBING THROUGH 10K FEET THE CREW OBSERVED A LOW OIL QUANTITY CONDITION ON NR 1 ENGINE. VISUAL CONFIRMATION OF OIL LOSS ACCOMPLISHED AND NR 1 ENGINE SHUTDOWN. THE AIRCRAFT RETURNED WITHOUT INCIDENT TO POINT OF DEPARTURE. MAINTENANCESDR CA061222005Oil System · leaking(CAN) ENROUTE THE CREW OBSERVED LOW OIL QUANTITY ON THE NR 2 ENGINE. FLUID WAS OBSERVED DEPARTING THE DRAIN MAST. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT FURTHER PROBLEM. MAINTENANCE FOUND AN AIR LEAK OCCURING AT THE OISDR CA061218006Drain Mast · leaking(CAN) ENROUTE AFTER MISSED APPROACH AT SNAP LAKE THE CREW OBSERVED A FUEL LEAK AT THE DRAIN MAST ON NR 2 ENGINE. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT CONTINUED TO DESTINATION WITHOUT FURTHER PROBLEM. MAINTENANCE DETERMINED THE LEAK SOURCE TO BE FROM THE MSDR CA061215001Filter · unknown(CAN) ON DEPARTURE, THE CREW OBSERVED NR 2 ENGINE OIL LEVEL DROPPING TO 2.75 GAL. WITH A LOW OIL LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE. MAINTENANCE REPLACED THE NR 2 SCAVENGE OIL FILTER AND REPLENISHED THE OIL QUANTITY TO 10 GAL. THE ASDR CA061212002Propeller · damaged(CAN) IN CRUISE AT FL240 AFTER DEPARTURE THE CREW OBSERVED LOW OIL QTY ON NR 2 ENGINE. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT CONTINUED TO DESTINATION. SHORTLY AFTER RE-ESTABLISHING CRUISE AT FL220 THE CREW OBSERVED LOW OIL QTY ON NR 4 PROPELLER. THE PROP SDR CA061017005Downlock Switch · out of adjust(CAN) DURING DEPARTURE THE NOSE LANDING GEAR FAILED TO RETRACT ON TAKE-OFF. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT FURTHER PROBLEM. MAINTENANCE ADJUSTED THE DOWNLOCK SWITCH AND CARRIED OUT A GEAR SWING BEFORE THE AIRCRAFT WAS RETURNED TO SERVICE. SDR CA061016005Gyro · malfunctioned(CAN) DURING DESCENT THE CREW OBSERVED A GYRO FLAG AND THE A/P DISENGAGED. THE COMPASS BEGAN TO OSCILLATE WITH A COMPARATOR FAIL LIGHT INDICATION. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 1 VG AND TSDR CA060920001Gearbox · making metal(CAN) DEPARTING THE CREW OBSERVED A CHIP LIGHT INDICATION ON NR 2 RGB. THE ENGINE WAS SHUT-DOWN AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND CONTAMINATION ON THE RGB PLUG BELIEVED TO BE FROM THE STARTER SEAL. THESDR CA060601001Gasket · failed(CAN) DEPARTING, CREW OBSERVED A NACELLE OVER HEAT INDICATION ON NR 2 ENGINE. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE. ON APPROACH THE LT MAIN GEAR FAILED TO INDICATE DOWN AND LOCKED, AFTER VISUAL CONFIRMATION THE AIRCRAFT LANDESDR LR7A06015Spring · brokenNR 4 THROTTLE JAMMED FORWARD OF FLIGHT IDLE. ENGINE SHUT DOWN ON SHORT FINAL AT 01:08 Z IAW QRH. FOUND THROTTLE DETENT SPRING BROKEN IN QUADRANT. REMOVED AND REPLACED THROTTLE DETENT SPRING, INSPECTED AND CLEANED AREA PER SMP581 CHAP 76-10, SYSTEM OPS CHECSDR CA060413002Friction Brake · damagedDURING TRANSITION TO DESCENT, NR 3 THROTTLE WOULD NOT RETARD FULLY. THE CREW ELECTED TO CARRY OUT A PRECAUTIONARY SHUTDOWN OF NR 3 ENGINE. A NORMAL LANDING WAS COMPLETED. MAINTENANCE WAS UNABLE TO DETECT A FAULT DURING POST FLIGHT ASSESSMENT.SDR LR7A05207Support Bracket · crackedDURING A-CHECK IAW HA1200 FOUND LT LWR SLOPING LONGERON SUPPORT BRACKET CRACKED AT FS858, WL187, LBL63. REPLACED FITTING IAW SMP583 CH 51-10 AND 51-70. LP NR 21479 ITEM M2.SDR LR7A05114Fitting · crackedDURING PREFLIGHT CHECK FOUND LT SIDE STRUCTURE STRUT BRACE AT FS 858 LOWER ATTACH BRACKET CRACKED. REPLACED ATTACH BRACKET IAW SRM SMP 583 51-10 PG. 3(G) AND 51-70. LP 16393, ITEM M1.SDR LR7A05119Stiffener · crackedDURING C -6 CHECK PER HC5212, FOUND CARGO DOOR AFT BULKHEAD WEB STIFFENERS CRACKED, FS 1023, RBL20. REPLACED WEB STIFFENERS IAW SRM SMP 583 FIGURE 51-70 AND AC43.13-1B PARA 4-57, NR 0106.SDR LR7A05120Stiffener · crackedDURING C -6 CHECK IAW HC5212, FOUND CARGO DOOR AFT BULKHEAD WEB STIFFENERS CRACKED, FS1023, RBL30. REPLACED WEB STIFFENERS IAW SRM SMP 583 FIGURE 51-70 AND AC43 13-1B PARA 4-57, NR 0106.SDR LR7A05121Stiffener · crackedDURING C -6 CHECK IAW HC 5212, FOUND CARGO DOOR AFT BULKHEAD WEB STIFFENERS CRACKED, FS 1023, RBL40. REPLACED WEB STIFFENERS IAW SRM SMP 583 FIGURE 51-70 AND AC43 13-1B PARA 4-57, NR 0106.SDR LR7A05122Stiffener · crackedDURING C-6 CHECK IAW HC5212, FOUND CARGO DOOR AFT BULKHEAD WEB STIFFENERS CRACKED, FS1023, LBL20. REPLACED WEB STIFFENERS IAW SRM SMP 583 FIGURE 51-70 AND AC43.13-1B PARA 4-57, NR 0106.SDR LR7A05123Angle · crackedDURING C-6 CHECK IAW HC5212, FOUND CARGO DOOR BULKHEAD WEB STIFFENERS CRACKED, FS 1023, LBL33. REPAIRED STIFFENER ANGLES IAW SRM 51-140-19, NR 0107.SDR LR7A05124Angle · crackedDURING C-6 CHECK IAW HC5212, FOUND CARGO DOOR BULKHEAD WEB STIFFENERS CRACKED, FS 1023, LBL36. REPAIRED STIFFENER ANGLES IAW SRM 51-140-19, NR 0107.SDR LR7A05125Angle · crackedDURING C-6 CHECK IAW HC5212, FOUND CARGO DOOR BULKHEAD WEB STIFFENERS CRACKED, FS 1023, RBL25. REPAIRED STIFFENER ANGLES IAW SRM 51-140-19, NR 0107.SDR LR7A05107Engine · flamed outFLIGHT CREW REPORTED DURING APPROACH, NR 4 ENGINE FLAMED OUT ON SHORT FINAL AFTER WAKE TURBULENCE ENCOUNTER. ENGINE WAS AT FLIGHT IDLE. DURING MAINTENANCE EVALUATION GROUND RUN NR 4 RRM AT 105 PERCENT AT FLIGHT IDLE. REPLACED PROPELLER ASSY IAW HN6101 AND 6SDR LR7A05100Housing · failedFLIGHT CREW REPORTED NR 4 PROPELLER RPM FLUX OUT OF LIMITS IN BOTH NORMAL AND MECHANICAL GOVERNING. SHUTDOWN NR 4 ENGINE AT 1953Z IAW AOM ESP. REPLACED NR. 4 PROPELLER VALVE HOUSING IAW HN61135. OPS AND LEAK CHECK NORMAL IAW HN7101. LP 16472, ITEM 1.SDR LR7A05093Skin · crackedDURING SCHEDULED (A) CHECK INSPECTION IAW JOB CARD HA1200 FOUND CARGO DOOR EXTERNAL STRAP GOUGED AND SKIN CRACKED APPROX. 1.5 IN. BY SUSPECTED CARGO LOADING IMPACT AT FS 1001 LBL 40. DAMAGE DISPOSITION IAW EDY96-1. AIRCRAFT FERRIED UNPRESSURIZED FOR REPAIR.SDR LR7A05091Bulkhead · crackedDURING SCHEDULED B-3 CHECK FOUND AFT FUSELAGE INTERIOR BULKHEAD CRACKED 4 INCHES VERTICALLY AT FS880 LHS LOWER POSITION WL200 BL68R. WEB REPAIRED IAW SMP583 FIG 51-140-17. LT FS880 WL200 BL68L. NR 2019SDR LR7A05092Bulkhead · crackedDURING SCHEDULED B-3 CHECK FOUND CABIN BULKHEAD CRACKED AT RT FS477 WL210 BL55R. WEB REPAIRED IAW SMP583 FIG 53-40-09. RT FS477 WL210 BL55R. NR 2056.SDR CA050413002Drag Angle · cracked(CAN) ENROUTE YZF FROM HIGH LAKE(FLT 702) CLIMBING THROUGH FL230, THE CREW HEARD A BANG IN THE CARGO AREA. THE L/M THE F/E WENT AFT AND OBSERVED A CRACK IN THE LT SIDE DRAG ANGLE. THE CREW DEPRESSURIZED THE AIRCRAFT AND CONTINUED TO DESTINATION LANDING WITHOSDR 2005FA0000357Support · incorrectDURING NR 2 ENGINE REPLACEMENT AND INSTALLATION OF THERMOCOUPLES THE FOLLOWING OBSERVATIONS WERE MADE: 2 COMBUSTION LINER SUPPORTS HAD BEEN GROUND TO FIT INTO LINER. LOOSE LOCKWIRE ON REAR SCAVANGE PUMP RETAINING NUTS. INLET/ OUTLET OIL TRANSFER TUBE RETAINISDR CA050214007Drag Angle · cracked(CAN) APPLICATION OF SB 382-53-61 RESULTED IN FINDING A 8-10 INCH CRACK, BEING LOCATED IN THE TARGET AREA ON THE RT SIDE IN THE RADIUS OF THE DRAG ANGLE BETWEEN STATION 477 AND 517.SDR LR7A04194Spar · crackedDURING SCHEDULED B1 INSPECTION IAW JOB CARD HB5302, FOUND CENTER WING FRONT SPAR WEB CRACKED AT FS 517, CWS 20.5R, WL 273. REPAIRED IAW EA 382-53-04-088. NR 0017.SDR LR7A04195Skin · crackedDURING SCHEDULED B1 INSPECTION IAW JOB CARD HB5301, FOUND RT FS 407 EXTERNAL ESCAPE HATCH FWD UPPER CORNER CUTOUT CRACKED AT WL 226, RBL 80. REPAIRED IAW SRM SMP 583 53-40-50. NR 0027.SDR LR7A04196Frame · crackedDURING SCHEDULED (A) CHECK INSPECTION IAW JOB CARD HA1200 FOUND FS 836 FRAME WEB CRACKED AT LBL 68, WL 197. REPAIRED IAW EA 382-53-04-089. GMM133 ITEM M3.SDR LR7A04108Fitting · crackedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5324 FOUND RMLG FS 477 FWD FAIRING TENSION TIE SUPPORT FITTING CRACKED AT WL 158, RBL 68. REPLACED FITTING IAW DWG 339394 AND SRM SMP 583 51-70. NR 0280.SDR LR7A04109Fitting · crackedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5323 FOUND LMLG FS 617 AFT FAIRING TENSION TIE FITTING CRACKED AT WL 158, LBL 68. REPLACED FITTING IAW DWG 339394 AND SRM SMP 51-70. NR 0283.SDR LR7A04110Frame · gougedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5324, FOUND FS 477 FRAME GOUGED AT WL 184, RBL 83. REPAIRED PER SRM SMP 583 51-140-22. NR 0293.SDR LR7A04111Angle · crackedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5511, FOUND RUDDER TRIM ACTUATOR MOUNT ASSY LT AND RT MAIN ATTACH ANGLES CRACKED AND WORN AT FS 1129, VSS 98, LBL 2 AND RBL 2. REPAIRED IAWEA 382-55-04-069. NR 0297.SDR LR7A04112Pressure Panel · crackedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5323, FOUND LT FS 597-617 PRESSURE PANEL CRACKED AT, WL 260, LBL 61. REPAIRED IAW EA 382-53-04-070. NR 0307.SDR LR7A04113Beam · crackedDURING SCHEDULED C6 INSPECTION IAW JOB CARD HC5323, FOUND LT MLG FS 557 UPPER BOW BEAM OUTER TEE CAP CRACKED AT WL 232, LBL 67. REPLACED TEE CAP IAW DWG 372332 AND SRM SMP 583 51-70. NR 0384.
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