Pratt & Whitney JT9D-20J
Service difficulty reports · 76
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 = 'JT9D20J' 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 = 'JT9D20J' 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 0101331147Clamp · failedWHILE IN CRUISE AT FL260, THE NR 2 ENGINE FIRE WARNING ACTIVATED. THE ENGINE WAS SECURED PER COM AND ONE FIRE BOTTLE WAS DISCHARGED. AN EMERGENCY WAS DECLARED WITH THE FLIGHT LANDING WITHOUT INCIDENT. MAINTENANCE REPLACED THE TWO PNEUMATIC DUCT CLAMPS WHICHSDR 0100571158Engine · leakingDURING CLIMB AFTER TAKEOFF, THE CREW REPORTED SMOKE ENTERING THE CABIN FROM A PNEUMATIC SOURCE. THE FLIGHT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND DETERMINED THE NR 1 ENGINE TO BE LEAKING OIL AND CONTAMINATING THE SDR 9905091156Engine · malfunctionedDURING DESCENT AT 12,000 FEET WHILE IN TURBULENCE, THE NR 2 ENGINE FLAMED OUT. THE RESTART ATTEMPT WAS SUCCESSFUL WITH ENGINE OPERATION NORMAL FOR THE REMAINDER OF THE FLIGHT. MAINTENANCE INSPECTED THE ENGINE PER THE TAFI MANUAL WITH NO DEFECTS NOTED. ADDITISDR 9903391158Power Lever · out of adjustAFTER TOUCHDOWN WHEN REVERSE THRUST WAS APPLIED, THE NR 3 ENGINE DID NOT ACCELERATE. THE NR 2 ENGINE DEVELOPED MAXIMUM REVERSE THRUST WHILE THE NR 1 THRUST REVERSER WAS INOPERATIVE ON MEL. MAXIMUM BRAKING WAS APPLIED BUT THE AIRCRAFT DID NOT STOP UNTIL APPROSDR 9900501149Duct · failedDURING INITIAL CLIMB AFTER TAKEOFF AT APPROXIMATELY 2000 FT MSL, THE NR 2 ENGINE FIRE WARNING ANNUNCIATED. THE ENGINE WAS SHUT DOWN PER THE FIRE WARNING CHECK LIST AND THE NR 1 FIRE BOTTLE WAS DISCHARGED. THE FIRE WARNING CEASED AFTER THE BOTTLE WAS DISCHARGSDR 9809561141Fuel Line · crackedWHILE AT CRUISE FL330, THE NR 2 ENGINE COMPRESSOR STALLED. ALL NR 2 PARAMETERS ROLLED BACK TO FLIGHT IDLE. THE ENGINE DID NOT RESPOND TO POWER LEVER INPUTS AND WAS SHUT DOWN. THE AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. THE CREW DID ATTEMPT ONSDR 9809131149Engine · flamed outWHILE IN CRUISE FLIGHT AT FL340, THE AIRCRAFT ENCOUNTERED MODERATE TURBULENCE, POSSIBLY WAKE TURBULENCE, AND THE NR 1 ENGINE FLAMED OUT. THE ENGINE WAS SECURED PER ENGINE FAILURE CHECKLIST AND A DESCENT FROM FL340 WAS STARTED. AT FL300, A RESTART WAS ACCOMPLSDR 9808921141Compressor · stalledDURING THE LANDING ROLLOUT, THE NR 3 ENGINE COMPRESSOR STALLED WHILE IN REVERSE THRUST. THE EGT REACHED 970C BEFORE THE ENGINE WAS SHUT DOWN. MAINTENANCE PERFORMED A BORESCOPE INSPECTION AND FOUND DAMAGE TO THE HIGH PRESSURE COMPRESSOR. THE AIRCRAFT WAS REMOSDR 9807741160Engine · flamed outAT TOP OF DESCENT FL330, THE NR 3 ENGINE FLAMED OUT. THE ENGINE WAS SUCCESSFULLY RESTARTED ON THE SECOND ATTEMPT. THE DESCENT AND LANDING WAS WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE ENGINE PER TAFI 71-00-00 AND PERFORMED A HIGH POWER ENGINE RUN, ALL WSDR 9806911148Tr Unit · malfunctionedDURING TAKEOFF ROLL, THE NR 2 ENGINE REVERSER UNLOCKED LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE PLACED THE REVERSER ON MEL 78-1A.SDR 9806751144Compressor · stalledAFTER LANDING WHILE CREW WAS ATTEMPTING TO RESTOW THE NR 3 ENGINE THRUST REVERSER, THE NR 3 ENGINE COMPRESSOR STALLED. EGT CLIMBED TO 820C AND THE ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED THE ENGINE PER THE TAFI MANUAL WITH NO DEFECTS NOTED. THE ENGINE WASDR 9806411148Tr Unit · malfunctionedWHEN ENGINE POWER WAS ADVANCED TO THE TAKEOFF SETTING, THE NR 2 ENGINE THRUST REVERESER UNLOCK INDICATION ILLUMINATED. THE TAKEOFF WAS ABORTED AT APPROXIMATELY 30 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE PLACED THE REVERSER ON MEL 78-1A.SDR 9805721154Compressor · stalledDURING LANDING ROLLOUT AT APPROXIMATELY 80 KNOTS WHILE IN REVERSE THRUST, THE NR 2 ENGINE COMPRESSOR STALLED. THE ENGINE WAS SHUT DOWN AT APPROXIMATELY 40 KNOTS. THE EGT WAS AT MAXIMUM INDICATION FOR 10 SECONDS. THE ENGINE WAS BOROSCOPED WITH NO TROUBLE FOUSDR 9804851148Compressor · stalledDURING THE LANDING ROLLOUT WHILE IN REVERSE THRUST AT 85 KTS, THE NR 3 ENGINE COMPRESSOR STALLED. THE EGT ROSE TO 900C BEFORE THE ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED THE ENGINE WITH NO DEFECTS NOTED. THE REVERSER WAS PLACED ON MEL 78-1A DUE TO LACK SDR 9803411147Engine · failedDURING LANDING ROLLOUT WHILE IN REVERSE THRUST, THE NR 1 ENGINE COMPRESSOR STALLED. THE AIRPORT TOWER REPORTED SMOKE FROM THE TAILPIPE OF THE NR 1 ENGINE. THE ENGINE WAS SHUT DOWN USING THE EMERGENCY COM PROCEDURE, EGT DID NOT EXCEED 700C. MAINTENANCE INSPESDR 9803131144Compressor · stalledDURING CRUISE AT FL370, THE NR 2 ENGINE COMPRESSOR STALLED, EGT ROSE TO 940C AND THE ENGINE WAS SHUT DOWN. A RESTART ATTEMPT AT FL330 WAS SUCCESSFUL AND THE ENGINE OPERATION WAS NORMAL FOR THE REMAINDER OF THE FLIGHT. MAINTENANCE INSPECTED THE ENGINE PER TAFSDR 9802281160Tr Unit · malfunctionedDURING LANDING ROLL AND WHILE COMING OUT OF REVERSE THRUST, THE NR 2 ENGINE THRUST REVERSER REMAINED DEPLOYED. THE CREW ATTEMPTED TO RECYCLE THE REVERSER AND A COMPRESSOR STALL OCCURRED. THE ENGINE WAS SHUT DOWN WITH A MAXIMUM EGT OF 800C. MAINTENANCE INSPESDR 9801791156Actuator · out of adjustON TAKEOFF ROLL AT APPROXIMATELY 60 KNOTS, THE NR 3 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE THRUST REVERSER AND ADJUSTED A LOCK ACTUATOR. THE OPERATIONAL CHECKSDR 9800421154Bypass Switch · failedDURING CLIMBOUT, THE NR 1 ENGINE OIL FILTER BYPASS WARNING LIGHT ILLUMINATED FOR ONE MINUTE. ALL OTHER INDICATIONS WERE NORMAL AND THE LIGHT EXTINGUISHED WITH NO ACTION. DURING DESCENT INTO MSP, THE LIGHT ILLUMINATED AGAIN AND THE CREW SHUT DOWN THE NR 1 ENGSDR 9724251160Compressor · stalledDURING LANDING ROLLOUT, WHILE IN REVERSE THRUST THE NR 3 ENGINE COMPRESSOR STALLED. THE EGT ROSE TO 880C BEFORE THE ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED THE ENGINE PER MM71-00-00 WITH NO DEFECTS NOTED. THE ENGINE WAS RUN WITH NORMAL INDICATIONS. THESDR 9723231141Engine · failedDURING CLIMB, THE CREW OBSERVED SPARKS EXITING FROM THE REAR OF THE NR 3 ENGINE EVERY 15 TO 20 SECONDS. ALL ENGINE INSTRUMENTS INDICATED NORMAL AND NO VIBRATION WAS NOTICED. THE FLIGHT RETURNED TO BOS. MAINTENANCE FOUND MOLTEN METAL ON THE BLEED SCREEN AND SDR 9723131161Start Valve · malfunctionedDURING CRUISE, THE NR 1 ENGINE START VALVE OPEN LIGHT ILLIMINATED. CREW FOLLOWED COM PROCEDURE AND THEN DIVERTED TO BOS FOR MAINTENANCE. START VALVE WAS FOUND IN THE CLOSED POSITION WHEN AIRCRAFT ARRIVED BUT WAS CHANGED PRECAUTIONARY. START VALVE INDICATIONSDR 9722511146Tr Unit · malfunctionedON TAKEOFF ROLL AS POWER WAS APPLIED, THE NR 1 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT APPROXIMATELY 30 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE PLACED THE REVERSER ON MEL 78-1A.SDR 9722411160Compressor · stalledDURING LANDING ROLLOUT, THE NR 3 ENGINE COMPRESSOR STALLED, EGT REACHED 1000C FOR 1 TO 2 SECONDS BEFORE THE ENGINE WAS SHUT DOWN. MAINTENANCE DEACTIVATED THE THRUST REVERSER PER MEL AND INSPECTED THE INLET AND EXHAUST WITH NO DAMAGE FOUND. THE BORESCOPE INSPSDR 9722521144Tr Unit · malfunctionedDURING TAKEOFF ROLL, THE NR 3 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AT 70 KTS WITH THE INDICATION EXTINGUISHING WITH POWER REDUCTION. MAINTENANCE PLACED THE REVERSER ON MEL 78-1A AND THE AIRCRAFT RETURNED TO SERVICE.SDR 9722201146Thrust Reverser · malfunctionedDURING LANDING ROLLOUT, THE NR 1 ENGINE THRUST REVERSER FAILED TO STOW. THE CREW RECYCLED THE REVERSER AND A COMPRESSOR STALL OCCURRED. MAX EGT WAS 650C. THE ENGINE WAS SHUT DOWN. THE OUTBOARD REVERSER SLEEVE DEPARTED THE AIRCRAFT. MAINTENANCE LOCKED OUT SDR 9720491149Compressor · stalledDURING TAKEOFF ROLL AND WHILE INCREASING POWER, THE NR 3 ENGINE EXPERIENCED A COMPRESSOR STALL. N2 WAS AT 70 PERCENT AND EPR WAS 1.35 WITH NO ABNORMAL ENGINE INDICATIONS. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED TSDR 9718111141Tach Ind · failedON TAKEOFF ROLL, THE NR 3 ENGINE N1 INDICATION SPIKED WHILE AT MAXIMUM POWER. THE TAKEOFF WAS ABORTED AT APPROXIMATELY 40 KNOTS. ALL OTHER PARAMETERS WERE NORMAL. THE AIRCRAFT RETURNED TO THE GATE WHERE MAINTENANCE DEFERRED THE N1 INDICATION UNDER MEL 77-1BSDR 9716251144Tr Light · illuminatedON TAKEOFF ROLL, THE NR 3 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AT 100 KNOTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE DEFERRED THE REVERSER INDICATION SYSTEM UNDER MEL 78-2A WITH THE REVERSER STOWED AND LOCKED. ESDR 9716051148Tr Cable · out of adjustWHILE ADVANCING THROTTLES TO TAKEOFF POWER, THE NR 2 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE LOCKED OUT THE NR 2 THRUST REVERSER AND PLACED IT ON MEL 78-1A. AIRCRAFT THEN DESDR 9715581149Tr Unit · malfunctionedDURING LANDING ROLLOUT, THE NR 3 ENGINE THRUST REVERSER DID NOT STOW. THE NR 3 ENGINE EGT CLIMBED TO 920C AND THE ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED THE ENGINE PER MM 70-00-00. EGT WAS WITHIN LIMITS AND NO DEFECTS WERE NOTED. GROUND RUN OF ENGINE SDR 09712131148Engine · malfunctionedCREW ABORTED TAKEOFF AT 110 KNOTS WHEN THE NR 1 ENGINE WOULD NOT REACH TAKEOFF EPR. TAKEOFF EPR WAS SET TO 1.51, BUT NR 1 ENGINE ONLY REACHED 1.45. ALL OTHER ENGINE INDICATIONS WERE NORMAL. CREW RAN ENGINE TO TAKEOFF EPR OF 1.51 AND PERFORMED BLEED CHECK PESDR 9711421146Tr Unit · locked outDURING TAKEOFF ROLL, NR 2 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT 90 KNOTS. MAINTENANCE VERIFIED THAT THE THRUST REVERSER WAS LOCKED OUT AND CHANGED THE MEL TO 78-2A.SDR 9711121160Duct · looseAT APPROXIMATELY V1 SPEED, THE NR 1 ENGINE FIRE WARNING LIGHT AND BELL ACTIVATED AND AT 800 FT AGL THE NR 1 REVERSER UNLOCK LIGHT ILLUMINATED. THE NR 1 ENGINE WAS SHUT DOWN PER IAW COM PROCEDURES AND FUEL WAS DUMPED. AIRCRAFT RETURNED TO MSP AND LANDED WITHOSDR 9710721156Compressor · stalledDURING TAKEOFF ROLL, PASSENGERS REPORTED A FLASH AND FLAME BALL FROM LEFT WING. ALSO, TOWER REPORTED HEARING A LOUD NOISE. TAKEOFF WAS ABORTED AT 80 KNOTS. CREW SUSPECTED NR 1 ENGINE COMPRESSOR STALL BUT REPORTED NO ABNORMAL INDICAITONS. MAINTENANCE INSPECSDR 9710311147Engine · overtempON LANDING WITH ALL ENGINES IN REVERSE THRUST, NR 1 ENGINE OVERTEMPED REACHING MAX EGT 980 CELSIUS. THE NR 1 ENGINE WAS SHUTDOWN WITH REVERSER UNLOCK LIGHT STILL ILLUMINATED. MAINTENANCE INSPECTED INLET AND EXHAUST, RAN ENGINE AT IDLE, AND CYCLED REVERSER SESDR 9710111158Compressor · stalledAT 1,400 FEET DURING TAKEOFF, THE NR 2 ENGINE COMPRESSOR STALLED TWICE WITH EGT MOMENTARILY REACHING 900C ON BOTH OCCASIONS. NO OTHER ABNORMAL INDICATIONS. MAINTENANCE CONTROL RECOMMENDED DIVERSION TO BOS FOR MAINTENANCE. INSPECTION FOUND COMPRESSOR BLADE PSDR 9709171148Compressor · stalledDURING TAKEOFF ROLL WITH POWER APPLICATION, THE NR 3 ENGINE COMPRESSOR STALLED. TAKEOFF WAS ABORTED WITH NO ENGINE LIMITS EXCEEDED. SECOND TAKEOFF WITH SLOWER POWER APPLICATION WAS NORMAL. MAINTENANCE VISUALLY INSPECTED ENGINE PER MM 71-00-00. NO DEFECTS WSDR 9708341160Tr Light · illuminatedDURING TAKEOFF ROLL, THE NR 2 ENGINE AMBER REVERSER UNLOCK LIGHT ILLUMINATED AND TAKEOFF WAS ABORTED. MAINTENANCE VERIFIED REVERSER WAS STOWED AND ALL LOCKPLATES INSTALLED. MEL 78-2A WAS ADDED. SPECIFIC PART CAUSING PROBLEM TO BE DETERMINED.SDR 9707431160Erp Indicator · malfunctionedDURING TAKEOFF, NR 1 ENGINE EPR LOW. TAKEOFF WAS ABORTED AT 100 KNOTS. MAINTENANCE REPLACED EPR INDICATOR. ENGINE GROUND RUN AND EPR INDICATION AT IDLE AND TAKEOFF POWER WAS NORMAL.SDR 9704011160Compressor · stalledSHORTLY AFTER TAKEOFF, THE NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL AT 300 FEET. ENGINE EGT BRIEFLY REACHED 985 AND THEN ALL INDICATIONS RETURNED TO NORMAL. FLIGHT CREW DECIDED TO RETURN TO DEPARTURE AIRPORT. PRIOR TO AN UNEVENTFUL LANDING, 110,000 LBS OFSDR 9703731149Oil Quantity · lowDURING CRUISE FLIGHT, THE NR 3 ENGINE LOW OIL QUANTITY AND OIL PRESSURE DEVELOPED. THE NR 3 ENGINE WAS SHUT DOWN AND THE AIRCRAFT DIVERTED TO YMX. AN UNEVENTFUL LANDING WAS PERFORMED. MAINTENANCE CHECKED FOR OIL LEAKS, INSPECTED CHIP DETECTORS, ADDED ENGINESDR 9703081146Compressor · stalledDURING LANDING, THE NR 3 ENGINE COMPRESSOR STALLED WHILE IN REVERSE. ENGINE WAS SHUT DOWN WHILE STILL IN REVERSE. PERFORMED INSPECTION WITH NO FAULTS FOUND, OPERATIONAL CHECK OK.SDR 9702811152Fire Warning · illuminatedDURING CLIMB, THE NR 3 ENIGNE FIRE INDICATION ILLUMINATED. SHUT DOWN ENGINE AND FIRE BOTTLE DISCHARGED. DUMPED 16,800 LBS AND RETURNED TO LAX. AIRCRAFT TO BE FERRIED TO MSP.SDR 9702491146Tt2 Sensor · failedDURING TAKEOFF, THE NR 1 ENGINE FAILED TO ACCELERATE. TAKEOFF WAS ABORTED AT 70 KNOTS. MAINTENANCE REPLACED THE TT2 SENSOR AND RETURNED TO SERVICE.SDR 9700861141Epr Indicator · malfunctionedDURING TAKEOFF ROLL, THE NR 3 ENGINE EPR WAS LOW. TAKEOFF WAS ABORTED AT 50 KNOTS. MAINTENANCE FOUND EPR INDICATOR FAULTY. REPLACED THE EPR INDICATOR.SDR 9625751147Pt 7 Line · brokenDURING TAKEOFF ROLLOUT, THE NR 3 ENGINE EXHIBITED LOWER POWER. THE TAKEOFF WAS ABORTED AND A/C RETURNED TO GATE. MAINTENANCE FOUND A BROKEN PT7 LINE BETWEEN 6 AND 8 O'CLOCK POSITION. REPAIR WAS DEFERRED PER MEL 77-3.SDR 9624451146Compressor · stalledDURING POWER REDUCTION AT FL210, THE NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL. AS EGT CLIMBED TO 750 DEGREES, THE ENGINE WAS SHUT DOWN AND RESTARTED. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND CONTINUED FLIGHT TO PHL WITHOUT FURTHER INCIDENT. VISUAL ANSDR 9624011158Compressor · stalledAT FL310 WHEN POWER WAS REDUCTED FOR DESCENT, THE NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL. THERE WAS A SUBSEQUENT VIBRATION UNTIL THE ENGINE WAS SHUT DOWN. NO ABNORMAL EGT OR FUEL FLOW INDICATION AT THE TIME OF INCIDENT. FLIGHT CONTINUED TO DTW WITHOUT FSDR 9621781150Compressor Blade · damagedDURING CRUISE AT FL350, THE NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL AND RECOVERED. EPR INCREASED AND N1 FLUCTUATED. CREW FOLLOWED COM PROCEDURES AND CONTINUED FLIGHT TO SEA WITHOUT FURTHER INCIDENT. BORESCOPE INSPECTION REVEALED DAMAGE TO THE 8TH STAGE H
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