Pratt & Whitney JT9D-7J
Service difficulty reports · 257
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 = 'JT9D7J' 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 = 'JT9D7J' 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 EIA2000023Engine · overtempANC - NR 1 ENGINE EGT CAT D EXCEEDANCE ON TAKEOFF MAX POWER. PERFORMED NR 1 ENGINE BORESCOPE INSPECTION OF COMBUSTION SECTION, AND HI/LOW PRESSURE TURBINE, FOUND OK. PERFORMED TANDEM BLEED CHECK, OK. PERFORMED EVC TRIM CHECK FOR FLYBACK, OK. ENGINE CHANGE SDR 2000UALA00292Light · malfunctionedEEL LIGHTING THROUGHOUT ENTIRE MAIN DECK HAS BEEN FLASHING ON AND OFF FOR THE WHOLE FLIGHT.SDR EIA2000021Nut · missingHKG - AT CRUISE, NR 1 ENGINE ROLLED BACK. NO THROTTLE RESPONSE. ATTEMPTED AIRSTART WITH NO RESULTS. DURING INSPECTION, FOUND NR 1 ENGINE STRUT AREA THROTTLE CONTROL BOX SECURING NUT MISSING, AND CONTROL BOX DISENGAGED FROM CONTROL SHAFT. BOTH BEVEL AND WASSDR EIA2000022Line · splitANC - NR 1 ENGINE LOP AND QTY IN FLT SHUTDOWN, MIN PRESSURE 8-10 PSI. DURATION 30 MIN. ALL SYSTEM NORMAL PRIOR TO LOSS OF OIL QTY AND PRESS. FOUND OIL PRESS LINE FROM FILTER TO TOP OF ENGNE TO OIL PRESS TRANSMITTER SPLIT, LT SIDE OF ENGNE. REPLACED WITH FLSDR 2000UALA00295Fitting · looseDURING NR 1 ENGINE CHANGE NOTICED THAT BOTH FORWARD ENGINE MOUNTS 65B90335-7 & -8 WERE LOOSE. IT WAS REPORTED THAT AN APPROX .125 INCH SIDE TO SIDE MOTION RELATIVE TO THE ADJACENT WEB WAS POSSIBLE. *S/D* FITTING MOVEMENT DUE TO LOOSE FASTENERS. UAL REPLACESDR 0001856729Engine · malfunctionedDURING CLIMB AT 7000 FEET, THE NR 4 ENGINE OIL QUANTITY RAPIDLY DECREASED TO ZERO WITH DROPPING OIL PRESSURE. POWER WAS REDUCED TO IDLE WHEN THE NR 4 ENGINE FIRE WARNING ACTIVATED. THE CREW DISCHARGED BOTH FIRE BOTTLES, DECLARED AN EMERGENCY, AND RETURNED TOSDR EIA2000018Engine · flamed outHNL - NR 1 ENGINE COMPRESSOR STALLED AND FLAMED OUT AT APPROXIMATELY 80 KIAS EGT EXCEEDED RED. MOTORED ENGINE DOWN TO 95 PERCENT. DURATION OF OVERTEMP APPROX 5 SECONDS. MAX EGT REACHED 950 DEGREES CELSIUS. PERFORMED VISUAL OVERTEMP INSPECTION PER 72-00-00 SDR EIA2000016Engine · flamed outPANC - IN CRUISE AT FL 340, NR 4 ENGINE EPR, N1, N2, EGT, F/F ROLLED BACK. ENGINE FLAMED OUT. ATTEMPTED TWO RELIGHTS, UNABLE. OIL PRESSURE STAYED ABOVE 5 PSI FOR DURATION OF FLIGHT. PERFORMED WINDMILL INSPECTION. INSP INLET/EXHAUST AND 3-5 BLEED PORTS, OKSDR 2000UALA00190Unknown · odorFUEL SMELL PRESENT IN COCKPIT AND FIRST CLASS AT THE TOP OF DESCENT.SDR K4HA99107Blade · brokenYQX - FLT 13283 - LOST NR 2 ENGINE AT ALT AFTER VIBRATION WAS FELT. SECURED ENGINE ACCORDING TO CHECKLIST. WHEN INSPECTED FOUND C1 BLADES BROKEN. REMOVED AND REPLACED NR 2 ENGINE IAW 71-00-02. B747 MM TESTED AND OPS CHECK GOOD. (M)SDR 0000906614Fuel Filter · contaminatedWHILE DESCENDING THROUGH FL160, THE NR 2 ENGINE FLAMED OUT. NO ABNORMAL INDICATIONS WERE OBSERVED AND THE ENGINE RESTARTED WITH NORMAL OPERATION FOR THE REMAINDER OF THE FLIGHT. THE AIRCRAFT WAS IN LITE WAKE TURBULENCE AT THE TIME OF THE FLAME-OUT. MAINTENASDR EIA2000013Engine · failedDURING TOD, WHEN THROTTLES WERE MOVED TO IDLE, ENGINE NR 1 CONTINUED A SMOOTH ROLLBACK. ENGINE WOULD NOT RESTART IN FLIGHT (ONLY MADE ONE ATTEMPT). FUEL HEAT WAS LAST USED 25 MINUTED PRIOR TO TOD. ENGINE WINDMILLED FOR 20-25 MINUTES. OIL PRESSURE VARIED FRSDR 2000UALA00073Relay · malfunctionedEMERGENCY LIGHT OVERHEAD PANEL UNARMED LIGHT STAYS ON WITH SWITCH IN ARMED POSITION. *S/D* RELAY K2 WAS REPLACED (IN OVERHEAD CONTROL PANEL). NOTE FROM ENGINEERING: IT IS NORMAL FOR THE UNARMED LIGHT TO COME ON IF THE BUTTON AT DOOR 1 LT IS ACTIVATESDR 2000UALA00069Module · inoperativeEMERGENCY LIGHTS DISARM LIGHT STAYS ON WITH SWITCH IN THE ARM POSITION. REPLACED EMERGENCY LIGHT MODULE ASSEMBLY (P/N 69B46010-28) AND CHECKS OK. CURRENTLY UNITED IS IN THE PROCESS OF MODIFYING THE MODULES. THIS MODIFICATION WILL PREVENT THE LIGHTS FROM STASDR 0000316614Fcu · malfunctionedWHILE IN CRUISE FLIGHT AT FL390, THE NR 1 ENGINE FLAMED OUT. THE FLIGHT RETURNED TO GUM AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THE ENGINE FUEL PUMP OUTPUT PRESSURE LOW. THE FUEL PUMP AND FUEL CONTROL WERE REPLACED. ENGINE OSDR 2000UALA00037Light · malfunctioned1L DOOR EMERGENCY LIGHT STAYS ON WHEN ACFT POWER IS REMOVED. *S/D* REPLACED THE DOOR MOUNT EMERGENCY LIGHT ASSY. OP CHECK OK.SDR 0000196719Engine · bird strikeDURING CLIMB AFTER CREW REPORTED A POSSIBLE BIRDSTRIKE, THE NR 4 ENGINE COMPRESSOR STALLED TWICE. THE ENGINE RECOVERED FOR 8-10 MINUTES AFTER THE FIRST STALL AND THEN STALLED AGAIN. THE ENGINE WAS SHUT DOWN, FUEL WAS DUMPED, AND THE FLIGHT RETURNED TO ANC. TSDR 99UAL900677Pushrod · damagedHNL MAINTENANCE FOUND THE LEFT I/B MIDFLAP TRAVELED OUTBOARD AND STRUCK THE I/B AILERON. INSPECTION FOUND THESE PARTS BROKEN: 65B15635-1 CRANK, 65B15651-7 PUSH ROD, 65B15651-4 PUSH ROD, AND 65B39351-3 FTG ITEMS (1) & (2) WERE NEAR THE NR 4 FLAP TRACK; WHILE SDR 99UAL900668Support Bracket · damagedDURING TROUBLESHOOTING OF THE GROUND SPOILER CABLES, MAINTENANCE FOUND THE RIGHT GROUND (INBOARD) SPOILER SUPPORT FITTING ASSEMBLY, (P/N 65B08099-6), DAMAGE AT THE MOST INBOARD CLEVIS LUG. APPROXIMATELY 60 PERCENT OF THE LUG WAS FOUND MISSING. *S/D* REPLACESDR 99UAL900650Connector · damagedSTRONG SMELL OF SMOKE AT CLIMB AT 23000, MOMENTARY FLAGS ON EPR AND FUEL FLOW GAUGE. NR 1 GEN FIELD LIGHT ON-SAI TOPPED. AFTER RESET APPEARED NORMAL. *S/D* SMOKE SMELL WAS CAUSED BY EXCESSIVE VOLTAGE (~100 VDC) APPLIED TO THE BRIDGE CIRCUIT OF THE NR 1 CSDSDR EIA990294Engine · leakingKJFK - AT LOWER POWER SETTING, AIR COND SMOKE WAS NOTICEABLE IN UPPER DECK/COCKPIT AREA. FOUND OIL OUT OF NR 2 ENGINE, NR 3 BEARING VENT. (M)SDR 99UAL900621Engine · failedNUMBER TWO ENGINE STALLED, BACK FIRED ON TAKEOFF ROLL. ABORTED TAKEOFF AT 120 KTS. EGT AMBER LIGHT CAME ON AS CAPTIAN REDUCED THRUST. *S/D* COMPRESSOR FAILED AND THE ENGINE SURPLUSED, IT WAS NOT DISASSEMBLED.SDR 99UAL900574Light · inopEEL STRIP AT BOTTOM OF CIRCULAR STAIR IS INTERMITTENT ON AND OFF NEAR 1ST CLASS GALLEY. *S/D* CYCLED EMERGENCY LIGHT SWITCH AND CHECKED LIGHT OPERATION. LIGHTS CHECKED OK. SYSTEM HAS BEEN FUNCTIONING NORMAL.SDR 99UAL900556Rib · crackedDURING INSPECTION OF THE OUTBOARD STRUTS RIBS (OUTBOARD AND INBOARD) AT NAC STA 236.5, THE OUTBOARD RIB ON STRUT NR 4 WAS FOUND CRACKED UNDERNEATH THE 65B90150-3 BRACKET. THE APPROXIMATE LENGTH OF THE CRACK IS 6 INCHES. ALSO, THE BRACKET WAS FOUND CRACKED. SDR K4HA99077Engine · failedNUMBER 4 ENGINE ON TAKEOFF LOST POWER, IFSD AND PULLED FIRE HANDLE. ABNORMAL ENGINE IND-EPR, N1, N2, FF, EGT. REMOVED AND REPLACED ENGINE.SDR 9904046730Fuel Control · malfunctionedAT 4,000 FEET ON FINAL APPROACH (KIX), THE NR 4 ENGINE FLAMED OUT. A SINGLE RESTART WAS ATTEMPTED AND ABORTED DUE TO HIGH EGT. THE LANDING WAS COMPLETED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE EXHAUST AND INTAKE WITH NO DEFECTS NOTED. THE FUEL CSDR 9904056730Engine · flamed outAT 4,500 FEET ON APPROACH, THE NR 4 ENGINE FLAMED OUT WHILE AT IDLE POWER. THE ENGINE WAS RESTARTED AND OPERATED NORMALLY FOR THE REMAINDER OF THE FLIGHT INCLUDING REVERSE AND TAXI OPERATION. MAINTENANCE INSPECTED THE ENGINE INCLUDING CHIP DETECTORS AND FUELSDR 9903976730Engine · flamed outDURING APPROACH, THE NR 4 ENGINE FLAMED OUT AT APPROXIMATELY 3,500 FEET. FLIGHT CREW CONTINUED APPROACH AND PERFORMED AN UNEVENTFUL LANDING. NO EMERGENCY WAS DECLARED. MAINTENANCE INSPECTED INLET, EXHAUST, AND BLEED PORTS. NO DAMAGE OR DEBRIS WAS FOUND. FSDR 99UAL900450Mask · dropedSEVERAL O2 MASKS DROPPED ON LANDING. CAUSE WAS LIKELY A HARD LANDING. MASKS WERE REPACKED AFTER LANDING. THIS HAS NO SAFETY IMPACT. THE OXYGEN SYSTEM WILL STILL PROVIDE OXYGEN TO ALL PASSENGERS IF SYSTEM IS ACTIVATED.SDR 99UAL900403Fire Wire · chafedNR 1 ENGINE 'B' FIRE NEEDLE IN FIRE ZONE: TESTED A NEEDLE AND GOT FAULT LIGHT: SELECTED 'B' LOOP AND NO FIRE WARNING: NOTICED BREATHER TEMP RISING (180): SHUT ENGINE DOWN. THE LWR AFT FIRE LOOP WIRING FOR BOTH A/B SYS CHAFED THROUGH THE INSULATION. THE CULPRSDR 9902296717Engine · flamed outAT FL120, DURING DESCENT WITH ENGINES AT IDLE POWER, THE NR 4 ENGINE FLAMED OUT. THE ENGINE WAS RESTARTED AND OPERATED NORMALLY FOR THE REMAINDER OF THE FLIGHT. MAINTENANCE PERFORMED TROUBLESHOOTING PER FIM WITH NO DEFECTS NOTED.SDR EIA990119Engine · flamed outTPE - AT FLIGHT LEVEL 410, AIRCRAFT ENCOUNTERED A THUNDERSTORM WHICH DID NOT SHOW UP ON RADAR. THE NR 2 ENGINE FLAMED OUT. AIRCRAFT THEN DESCENDED TO FLIGHT LEVEL 330 AND ACCOMPLISHED AN INFLIGHT RESTART. INSPECTION AT TPE FOUND NO DISCREPANCIES. LINE MAINSDR 99UAL900325Light · flickeredE-ZONE EMERGENCY LIGHTS FLICKER IN FLIGHT. *S/D* THIS PROBLEM COULD NOT BE DUPLICATED ON THE GROUND. A SYSTEM TEST OF THE E-ZONE EMERGENCY LIGHTS AND BATTERY PACKS WAS ACCOMPLISHED PER MM 33-51-00 PG 507. EMERGENCY LIGHTS AND PACKS TESTED OK PER SEA.SDR 99UAL900314Ins · malfunctionedABORTED TAKEOFF AT 90 KNOTS, ON ACCOUNT OF CAPTAIN'S ATTITUDE FLAG IN VIEW. AFTER REVERSE, NR 4 GREEN LIGHT ON, SHUT ENGINE DOWN. REALIGNED INS AND FLAG WENT AWAY. STARTED NR 4 ENGINE AND GREEN LIGHT WENT OUT. THEN MADE NORMAL TAKEOFF. *S/D* INS OUT OF ASDR 9901986729Tr Unit · malfunctionedAT 100 KTS ON TAKEOFF ROLL, THE NR 1 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE, MAINTENANCE DEFERRED THE REVERSER PER MEL 78-1 AND LOCKED OUT THE REVERSER PER DDG.SDR 99UAL900300Tube · tornEVACUATION SLIDE ON DOOR 1 LEFT WAS DEPLOYED DURING LAX MAINTENANCE CHECK. WITHIN TWENTY MINUTES OF DEPLOYMENT SLIDE WENT FLAT. *S/D* UNIT WAS SENT TO VENDOR FOR EVALUATION AND REPAIR. VENDOR FOUND A .75 INCH PUNCHER IN THE LOWER TUBE THAT DEVELOPED INTO ASDR 99UAL900244Engine · malfunctionedOIL SMELL PERMEATED THE ENTIRE CABIN AND COCKPIT DURING DESCENT. *S/D* FOUND OIL RESIDUE ON NR 1 ACM. REPLACED ACM, NO OIL LEAKS FOUND. INVESTIGATION REVEALED ACM INGESTED FOD, NO DAMAGE FOUND, THE OIL SEALS WERE INTACT. A 2ND ACM WAS REMOVED, DISASSEMBLESDR 99UAL900215Engine · malfunctionedELECTRICAL OVERHEAT SMELL IN COCKPIT DESCENDING THRU 24,000 FT, NO SMOKE. SMELL DISSIPATED, THEN RETURNED ON ADDING POWER LATER IN DESCENT. *S/D* FOUND OIL RESIDUE ON NR 1 ACM. REPLACED ACM, NO OIL LEAKS FOUND. INVESTIGATION REVEALED ACM INGESTED FOD, NOSDR EIA990113Compressor · stalledLAX - ON DESCENT, NR 4 ENGINE COMPRESSOR STALLED, EGT RISING, DID NOT EXCEED 850 DEGREES N1 DECREASING, ACCOMPLISHED ENGINE SHUTDOWN. ATTEMPT RESTART, NO FUEL FLOW INDICATED. (M)SDR 99UAL900169Wire · failedE-ZONE EMERGENCY FLOOR LIGHT INOP AND 1L CROSS AISLE EMERGENCY LIGHT INOP. REPAIRED WIRES AND CHECKED OK.SDR CKSA98746Bleed Air · odorCREW REPORTED, NR 3 ENGINE BLEED ALLOWS SMOKE IN THE COCKPIT. CLOSING BLEED, OIL SMOKE REMOVED. PERFORMED BLEED CHECK ON NR 3 ENGINE, GROUND RUN ENGINE IAW MM 71-00-00. NO DEFECT NOTED.SDR CKSA98625Engine · flamed outNR 1 ENGINE FLAMED OUT AT 39,000 FT. ATTEMPTED RELIGHT, EGT WAS GOING TO EXCEED START LIMITS. SHUTDOWN, DESCENDED TO 31,000 FT ATTEMPTED RELIGHT. STARTED AND RAN NORMALLY. SUMPED FUEL TANKS, OPS CHECK NR 1 ENGINE FUEL PUMP FP-12 AND FP-3 ALL IN LIMITS. PESDR CKSA98541Fire Light · illuminatedNR 2 ENGINE 'B' LOOP FIRE DETECTION LIGHT ILLUMINATED, INDICATOR WENT OFF SCALE HIGH AND ERRATIC. INSPECTED LOOPS SYSTEM. OPS CHECK GOOD (TEST) IAW B747 M/M 26-11-00.SDR CKSA98518Engine · defectiveNR 4 ENGINE FIRE INDICATION LIGHT AND BELL WENT OFF AT 2135Z, 24,000 FEET. AIRCRAFT GW 764,998 POUNDS, FUEL 264,000. SECURED ENGINE, DID NOT HAVE TO FIRE BOTTLE, DUMPED 132,000 POUNDS OF FUEL. OIL QUANTITY OBSERVED DECREASING TO HALF INDICATION PRIOR TO BELSDR 98UAL900458Light · inoperativeCROSS AISLE EEL STRIP AT FORWARD GALLEY INOP. REPLACED EMERGENCY LIGHT STRIP AND RESECURED IN PLACE. OPERATIONAL CHECK GOOD.SDR 98UAL900359Battery · dischargedOUTBOARD EMERGENCY FLASHLIGHT AT FLIGHT ATTENDANTS SEAT NEXT TO DOOR 3 RIGHT NEEDS TO BE REPLACED. REPLACED BATTERY AND REINSTALLED FLASHLIGHT, OP'S CHECKED GOOD.SDR 98UAL900316Wire · brokenDOOR 1 RIGHT EMERGENCY SLIDE LIGHT STAYS ON WITH EMERGENCY LIGHT SWITCH IN THE ARM POSITION. FOUND WIRE W2076-L5093-20 BROKEN AT DOOR SILL. WIRE PULLED OUT OF CONDUIT ABOVE SILL. REPLACED SLIDE LIGHT HARNESS AT DOOR 1R, OPS CHECKED OK.SDR EIAA980226Engine · failedNAN - DURING CLIMB-OUT AT APPROX 8000 FT AN EXPLOSIVE NOISE WAS HEARD AND A/C YAWED. NR 2 ENGINE S/N 662970 FAILED. AIRCRAFT RETURNED TO NAN WITH NO FURTHER INCIDENT. (M)SDR 9809686614Engine · flamed outWHILE CLIMBING THROUGH FL340, THE NR 3 ENGINE FLAMED OUT. THE ENGINES WERE RESTARTED APPROXIMATELY ONE MINUTE LATER WITH NORMAL INDICATIONS. THE FLIGHT CONTINUED TO SEL WITHOUT DIFFICULTY. MAINTENANCE INSPECTED THE ENGINES AND PERFORMED ENGINE RUNS WITH NO SDR 98UAL900279Bulkhead Fitting · crackedDURING ROUTINE MAINTENANCE, THE NR 3 PYLON REAR ENGINE MOUNT BULKHEAD FITTING, 65B90367-1 WAS FOUND WITH THREE CRACKS EMANATING FROM THE FASTENER HOLES. THERE IS NO RECORD OF THE MOD DESCRIBED IN BOEING S/B 747-54-2113 HAVING BEEN ACCOMPLISHED IN THIS AREA.
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