Pratt & Whitney JT9D-7A

Service difficulty reports · 593

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 = 'JT9D7A'
  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.

SDR P5CA9800503Seal · leakingEXCESSIVE OIL CONSUMPTION ON NR 2 ENG. FOUND GEN GARLOCK SEAL LEAKING. REPLACED SAME, LEAK CHECK GOOD REF MM 72-61-08. RAN ENG AT PART POWER PER MM 71-00-00.Mar 10, 1998 · N854FT · Boeing 747122 · Turbine Engine Accessory DriveSDR 98UAL900108Csd · failedAPPROXIMATELY ONE HOUR PRIOR TO ARRIVAL AT HNL NR 4 ENGINE CSD OVER TEMPERATURE. PROCEDURES 733 AND 734 INEFFECTIVE IN DISCONNECTING THE CSD. SHUT DOWN NR 4 ENGINE. LANDED UNDER AMBER ALERT. *S/D* ROOT CAUSE CANNOT BE DETERMINED DUE TO EXTENSIVE DAMAGE TOMar 6, 1998 · N154UA · Boeing 747123 · Alternator-Generator DriveSDR 98UAL900077Battery Pack · dischargedEMERGENCY LIGHTS AT 4 LEFT AND RIGHT ARE ON WHEN SWITCH IS ARMED. *S/D* PROBLEM WAS RESOLVED WHEN THE BATTERY PACK WAS REPLACED. PROBABLE CAUSE WAS DEGRADATION OF THE NICAD BATTERIES.Feb 18, 1998 · N4732U · Boeing 747122 · Emergency LightingSDR 9802496608Engine · failedWHILE AT CRUISE, THE NR 1 ENGINE OIL QUANTITY DECREASED TO ZERO WITH THE PRESSURE AT 25 PSI. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO NRT. MAINTENANCE REPLACED THE NR 1 ENGINE THE EXACT PART CAUSING DIFFICULTY TO BE DETERMINED.Feb 10, 1998 · N608US · Boeing 747151 · Engine (Turbine/Turboprop)SDR P5CA9800214O-Ring · cutLOW OIL QUANTITY INFLIGHT DOWN TO 1.06 GALS. PRECAUTIONARY SHUT-DOWN. FOUND O-RING FOR MAIN OIL FILTER DAMAGED. REPLACED O-RING RAN ENG AFTER OIL SERVICING, NO LEAKS FOUND. RESERVICED ENGINE AFTER RUN TO TOTAL OF 28 QTS PER MM REF 72-61-05.Feb 8, 1998 · N852FT · Boeing 747122 · Turbine Engine Oil SystemSDR P5CA9800051Engine · flamed outNR 4 ENGINE FLAMED OUT AT FL 390 DURING MODERATE TURBULENCE. ENGINE RELIT SHORTLY THEREAFTER. ALL PARAMETERS WERE NORMAL. NR 4 ENGINE INTAKE AND TAIL PIPE VISUAL CHECK NORMAL. NO METAL FOUND IAW MM 71-00-00. BORESCOPE IAW MM 72-00-00, NO DAMAGE FOUND. REJan 27, 1998 · N851FT · Boeing 747122 · Engine (Turbine/Turboprop)SDR 98UAL900039Switch · failedENGINE BACKFIRE, POP DURING LANDING ROLL WITH ACCOMPANYING FLASH NOTICED FROM CABIN. NO ABNORMAL ENGINE INDICATIONS. *S/D* WHEN THE STALL IN REVERSE OCCURRED THE NR 4 ENGINE REVERSER WAS LOCKED AND DEACTIVATED SO IT WAS NOT USED FOR REVERSE AND COULD NOT HAJan 25, 1998 · N4728U · Boeing 747122 · Engine (Turbine/Turboprop)SDR P5CA9800047Connector · contaminatedDURING CLIMB AT APPROX 37,000 FT, NR 1 ENG FLAMED OUT. AFTER SEVERAL ATTEMPTS AT A RESTART THE ENGINE LIT OFF AND FLAMED OUT AGAIN. ENGINE FIREWALL PLUG DOO14J FOUND CONTAMINATED. CLEANED PLUG AND RESEATED PIN NR 17. ELECTRICALLY CHECKED OUT PER WDM 76-11-1Jan 23, 1998 · N855FT · Boeing 747124 · Engine Emergency Shutdown SystemSDR P5CA9800034Fan Blade · crackNR 3 ENGINE, NR 5 FAN BLADE HAS A CRACK AT L/E. REMOVED CRACK BY BLENDING IAW MM 72-31-02.Jan 21, 1998 · N857FT · Boeing 747132 · Turbine Engine Compressor SectionSDR P5CA9800163Rail · crackNR 3 ENG TEC S-RAIL AT 1:30 POSITION HAS A RACE TRACK SLOT O/D CRACK. WELDED AND RELIEVED PER PWA MM 72-53-01 NR 22.Jan 21, 1998 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9800165Rail · crackedNR 3 ENG TEC S-RAIL AT 1:30 AND 10 O'CLOCK POSITION HAS 2 EA RACETRACK SLOT O/D CRACKS. WELDED AND RELIEVED PER PWA MM 72-53-01 NR 22.Jan 21, 1998 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9800166Rail · crackedNR 3 ENG TEC S-RAIL AT 11:45 POSITION HAS A CLEVIS PIN HOLE CRACK. REMOVED ENG MOUNT, WELDED AND RELIEVED AND REINSTALLED MOUNT PER PWA MM 72-53-01 NR 22.Jan 21, 1998 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9800168Rail · crackedNR 3 ENG TEC R-RAIL AT 10 O'CLOCK POSITION HAS CRACKED RADIAL LIGHTING HOLE. WELDED AND STRESS RELIEVED PER PWA MM 72-53-01 NR 22.Jan 21, 1998 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9800185Rail · crackedNR 4 ENG TEC R-RAIL AT 11 O'CLOCK POSITION PREVIOUS WELD AT LIGHTING HOLE SLOT INNER RADIUS CRACKED. WELDED AND NORMALIZED PER PWA MM 72-53-01 NR 22.Jan 21, 1998 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9800030R-Rail · crackedNR 3 ENGINE R RAIL AT 60 DEGREE POSITION LIGHTENING HOLE OD RADIAL CRACK. WELDED IAW PWA 72-53-01 REPAIR NR 14.Jan 16, 1998 · N855FT · Boeing 747124 · Turbine SectionSDR P5CA9701853Engine · stalledDURING CLIMB, NUMBER 4 ENGINE INDICATED LOW THRUST AND APPEARED TO BE STALLED. RESTARTED ENGINE. ENGINE OPERATED NORMAL FOR REMAINDER OF FLIGHT. PERFORMED CHECKS PER M/M 71-00-42 AND FOUND ALL NORMAL. REPLACED MAIN ENGINE FUEL FILTER PRECAUTIONARY, LEAK CHDec 28, 1997 · N3203Y · Boeing 747128 · Engine (Turbine/Turboprop)SDR EIAA970213Engine · shutdownNR 4 ENGINE OIL TEMP INCREASED TO 140 DEGREES CELSIUS AFTER TAKEOFF, REMAINED AT 140 DEGREES CELSIUS FOR 18.5 MINUTES, THEN REDUCED TO 129 DEGREES CELSIUS AFTER CRUISE POWER WAS SET. SOME VIBRATION IN NR 4 THROTTLE. AFTER 35 TO 40 MINUTES NR 4 FILTER BYPASS Dec 15, 1997 · N478EV · Boeing 747SR46 · Engine (Turbine/Turboprop)SDR 97UAL900870Lights · malfunctionedCABIN EMERGENCY LIGHTS COME ON WHEN COCKPIT SWITCH IS ARMED. *S/D* CAUSED BY 400HZ NOISE PICKED UP ON THE CONTROL LINES FOR THE EMERGENCY LIGHTS. CORRECTIVE ACTION WILL BE ADDING TERMINATION RESISTORS TO THE LINES PER COA 8-4608.Dec 13, 1997 · N4723U · Boeing 747122 · Emergency LightingSDR EIAA970211Compressor · stalledHKG - NR 2 ENGINE STALLED AT FL 39 START OF DESCENT, WOLD NOT RESPOND TO THROTTLE MOVEMENT. ENGINE SHUT DOWN AND IN FLT STARTED. OPS OK FOR REST OF FIGHT. NO COMP STALL. PERFORMED VISUAL INSPECTION OF THROTTLE LINKAGE AND OPS CHECKED MOVEMENT CHECKED GOOD.Dec 11, 1997 · N478EV · Boeing 747SR46 · Turbine Engine Compressor SectionSDR CKSA97586Seal · wornON DESCENT, SMOKE ENTERED CABIN ISOLATED TO NR 1 ENG WHEN HIGH STAGE LIGHT ON. PERFORMED MAINTENANCE CHECKLIST FOR INOPERATIVE ENGINE FERRY FLIGHT AS REQUIRED FOR THREE ENGINE. FERRY. THIS ACFT HAS BEEN INSPECTED AND FOUND SAFE FOR INTENDED THREE ENGINE FERRNov 30, 1997 · N704CK · Boeing 747146 · Turbine Engine Compressor SectionSDR 9721136603Tt2 Sensor · malfunctionedWHILE CLIMBING FROM FL330, THE NR 4 ENGINE PARAMETERS BEGAN TO FLUCTUATE AND WOULD NOT RESPOND TO POWER LEVER INPUTS. THE ENGINE WAS SHUT DOWN. THE ENGINE RESTARTED AT FL290 WITH ALL INDICATIONS NORMAL. THE AIRCRAFT RETURNED TO NRT, DUMPED FUEL, AND LANDED Nov 10, 1997 · N663US · Boeing 747151 · Fuel Controlling SystemSDR P5CA9701688Precooler · crackedCRACK IN NR 3 ENG PRE-COOLER, AFT OF HIGH STAGE BLEED CONNECTION. WELDED CRACK IAW PW 72-53-01.Oct 11, 1997 · N850FT · Boeing 747122 · Pneumatic Distribution SystemSDR P5CA9701677Cowl Fairing · crackedCRACK IN NR 3 ENGINE FAN COWL ATTACH (SADDLE) FAIRING AND CHAFE ANGLE. FABRICATED AND REPLACED FAIRING SKIN AND CHAFE ANGLE PER BOEING SRM 51-30-02.Oct 9, 1997 · N850FT · Boeing 747122 · Engine Cowling SystemSDR P5CA9701678Flange · crackedCRACK ON Q-FLANGE OF NR 3 ENGINE TURBINE EXHAUST CASE AT 1:30 O'CLOCK. WELD REPAIR MADE PER BOEING PROCESS 5975. INSPECTED WELD PER BOEING SOPM 20-20-02.Oct 9, 1997 · N850FT · Boeing 747122 · Turbine SectionSDR P5CA9701609Flange · crackedCRACKED R FLANGE (RAIL) ON NR 2 ENGINE TURBINE EXHAUST CASE. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Oct 4, 1997 · N852FT · Boeing 747122 · Turbine SectionSDR 97UAL900745Power Supply · inoperativeDOOR 3 RIGHT FWD AND AFT COVE EMERGENCY EXIT SIGNS INOPERABLE. REPLACED BATTERY POWER SUPPLY MODULE ITEM M445, OP CHECKED GOOD.Sep 28, 1997 · N154UA · Boeing 747123 · Emergency LightingSDR P5CA9701598Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE S-FLANGE (RAIL) AT 2 O'CLOCK. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Sep 28, 1997 · N858FT · Boeing 747123 · Turbine SectionSDR P5CA9701599Flange · crackedCRACK ON NR 3 ENGINE TURBINE EXHAUST CASE R-FLANGE (RAIL) AT 6 O'CLOCK. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Sep 28, 1997 · N858FT · Boeing 747123 · Turbine SectionSDR P5CA9701592Engine · flamed outAFTER TAKEOFF APPROXIMATELY 400 FT AGL, NR 2 ENGINE FLAMED OUT. ENACTED INFLIGHT RESTART PROCEDURES. ENGINE RESTARTED NORMALLY AND RETURNED TO BFM AND LANDED UNEVENTFULLY. CHECKED PT3 AND PS3 WATER TRAPS AND FOUND CLEAN PER M/M 75-31-01 AND CHECKED FUEL CONSep 21, 1997 · N856FT · Boeing 747132 · Engine (Turbine/Turboprop)SDR P5CA9701578Flange · crackedCRACK ON NR 4 ENGINE TURBINE EXHAUST CASE FLANGE (RAIL) AT 7 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9701580Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE R-FLANGE AT 2 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9701556Case Rail · crackedCRACK AT 10 O'CLOCK ON NR 1 ENGINE TURBINE EXHAUST CASE R-RAIL. WELD REPAIR AND STRESS RELIEF IAW PWA ENGINE MM 72-53-01, REPAIR 14.Sep 10, 1997 · N857FT · Boeing 747132 · Turbine SectionSDR P5CA9701541Case Rail · crackedCRACK ON TURBINE EXHAUST CASE R-RAIL APPROX 10 O'CLOCK ON NR 2 ENGINE. WELD REPAIRED AND STRESS RELIEVED PER PWA ENGINE MANUAL 72-53-01, REPAIR 14.Sep 9, 1997 · N857FT · Boeing 747132 · Turbine SectionSDR P5CA9701542Case Rail · crackedCRACK ON TURBINE EXHAUST CASE S-RAIL APPROX 1700 O'CLOCK ON NR 3 ENGINE. WELD REPAIRED AND STRESS RELIEVED PER PWA ENGINE MANUAL 72-53-01, REPAIR 14.Sep 9, 1997 · N857FT · Boeing 747132 · Turbine SectionSDR P5CA9701553Tr Sleeve · damagedDAMAGE ON TRAILING EDGE INBOARD LOWER SIDE OF NR 4 ENGINE FAN THRUST REVERSER SLEEVE. REPAIRED DAMAGE ON NR 4 ENGINE FAN SLEEVE PER BAC SRM 54-30-03.Sep 9, 1997 · N857FT · Boeing 747132 · Engine Thrust ReverserSDR P5CA9701452Turbine Case · crackedCRACK AT 90Ý POSITION R RAIL NR 3 ENGINE, RADIUS CRACK TRAVELING TO CASE OUTSIDE DIAMETER. REPAIRED PER PW M/M 72-53-01 REPAIR 14.Aug 26, 1997 · N855FT · Boeing 747124 · Turbine SectionSDR P5CA9701454Turbine Case · crackedCRACKED S RAIL NR 2 ENGINE AT 300Ý POSITION, RADIUS CRACK TRAVELING TO FILLER RADIUS, CRACK CONTAINED. REPAIRED PER PW M/M 72-53-01 REPAIR 14.Aug 26, 1997 · N855FT · Boeing 747124 · Turbine SectionSDR P5CA9701448Fuel Control · failedNR 4 ENGINE, AFTER POWER SET AND STABLE (1.12 EPR) TAKEOFF ROLL WAS STARTED, WHILE CONTINUING TO SET TAKEOFF POWER, NR 4 ENGINE FLAMED OUT AND TAKEOFF WAS ABORTED. REPLACED FUEL CONTROL UNIT AS PER M/M 73-21-01. REPLACED FUEL PUMP PRECAUTIONARY PER M/M 73-11Aug 24, 1997 · N857FT · Boeing 747132 · Fuel Control/Reciprocating EnginesSDR P5CA9701449Fan Blades · fod damageON MAINTENANCE WALKAROUND, FOUND DAMAGE TO FAN BLADES, INLET CASE AND NOSE COWL. SUSPECT THE DAMAGE OCCURRED ON LANDING SINCE THAT WAS THE LAST TIME THE ENGINE WAS OPERATED AND DAMAGE WOULD HAVE RESULTED IN OPERATIONAL PROBLEMS. ENGINE REMOVED AND REPLACED PAug 24, 1997 · N859FT · Boeing 747123 · Turbine Engine Compressor SectionSDR CKSA97458Bleed Air Duct · leakingNUMBER 2 FIRE DETECTION FAULT LIGHT CAME ON IN FLIGHT BLEED VALVE WENT TO CLOSE POSITION AND A AND B INDICATORS SHOW 8.5 AND 7. TEMP WAS NORMAL ON ALL ENGINE PARAMETERS. SUSPECT A BLEED AIR LEAK AROUND B-LOOP. FOUND AIR LEAK AT FIRE LOOP 6 O'CLOCK POSITION Aug 22, 1997 · N625PL · Boeing 747132 · Pneumatic Distribution SystemSDR P5CA9701400Oil Cap · cockedOIL LOSS CAUSED NUMBER 1 ENGINE SHUT DOWN 2 HOURS 20 MINUTES AFTER TAKEOFF WHEN PILOTS CAUTION PANEL OIL PRESSURE WARNING LIGHT ILLUMINATED AND INDICATED PRESSURE FLUCUATING BETWEEN 30 AND 35 PSI. FOUND OIL LOSS DUE TO TANK FILLER CAP COCKED ON FILLER NECK ANAug 10, 1997 · N856FT · Boeing 747132 · Turbine Engine Oil SystemSDR P5CA9701399Prbc · failedABORTED TAKEOFF AT LOW SPEED 100 KIAS, UNABLE TO MAINTAIN TAKEOFF POWER AT 1.43 ON NR 1 ENGINE WITHOUT EXCEEDING MAX EGT, EGT AT 932 DEGREES FOR 14 SECONDS. VISUALLY INSPECTED ENGINE AND PERFORMED BORESCOPE PER BAC MM 72-50-0, NO ABNORMAL CONDITIONS. DURING Aug 9, 1997 · N852FT · Boeing 747122 · Compressor Bleed ValveSDR 97UAL900598Bulb · failedBOTH FORWARD AND AFT FOOD CART ELEVATOR EMERGENCY LIGHTS HAVE BURNT OUT BULBS. REPLACED BULBS, CHECKED OK.Aug 5, 1997 · N4728U · Boeing 747122 · Emergency LightingSDR 97UAL900581Angle · crackedWHILE ACCOMPLISHING AD97-12-03, CRACKS WERE FOUND ON THE 65B91333-1 AND -2 ANGLES WHICH ATTACH TO THE CANTED WEB COMMON TO THE AFT VERTICAL AND THE UPPER HORIZONTAL WEBS. THESE ANGLES ARE NOT PART OF THE FITTING INSPECTION REQUIREMENTS BUT ARE ADJACENT TO THEAug 4, 1997 · N156UA · Boeing 747123 · Nacelle/Pylon StructureSDR 97UAL900591Fire Detector · chafedAPU FIRE WARNING LIGHT CAME ON. PULLED FIRE HANDLE AND DISCHARGED FIRE BOTTLE, LIGHT WENT OUT. HAPPENED WHILE IN CLIMB 10 MINUTES AFTER TAKEOFF AND 20 MINUTES AFTER APU SHUTDOWN ON GROUND. APU FIRE DETECTION TEST OK AFTER SHUTDOWN. *S/D* FOUND B-LOOP UPPEAug 3, 1997 · N4719U · Boeing 747122 · Fire DetectionSDR P5CA9701385Brg Vent Duct · shearedNR 4 ENGINE NR 3 BEARING VENT DUCT RIGHT SIDE SHEARED AT CLAMP LOCATION. REPLACED VENT DUCT PER M/M 75-22-01.Aug 3, 1997 · N3203Y · Boeing 747128 · Turbine Engine Oil SystemSDR 97UAL900587Light · inoperativeSLIDE ILLUMINATION EMERGENCY LIGHTS AT DOORS 2 AND 4 BOTH LEFT AND RIGHT POSITIONS REMAINED ON WITH COCKPIT SWITCH IN ARMED POSITION.Jul 31, 1997 · N155UA · Boeing 747123 · Emergency LightingSDR 97UAL900592Light · inoperativeEMERGENCY EXIT LIGHTS AT DOORS 2, 4 AND 5 REMAINED ON WITH COCKPIT SWITCH AND DOOR 1 SWITCH IN ARMED POSITION. ON OPERATIONAL CHECK AFTER ALL LIGHTS CONNECTED, FOUND 4 RIGHT SLIDE ILLUMINATION LIGHT INOPERABLE. REPLACED SLIDE ILLUMINATION LIGHT ASSEMBLY. EMJul 31, 1997 · N155UA · Boeing 747123 · Emergency LightingSDR 97UAL900583Light · inoperativeEMERGENCY EXIT DOOR LIGHT CAME ON AT 2 RIGHT. REPLACED LIGHT ASSEMBLY.Jul 29, 1997 · N155UA · Boeing 747123 · Emergency LightingSDR P5CA9701311Chip Detector · missingNR 3 ENGINE SHUT DOWN DUE TO LOW OIL PRESSURE, OIL QUANTITY LOW AND INCREASING OIL TEMPERATURE. ENGINE SHUT DOWN AT 23:30 LANDED 22:48 UTC 5 PSI OIL PRESSURE UNTIL LANDING. DURING INSPECTION OF ENGINE FOUND CHIP DETECTOR PLUG FOR ANGLE GEAR BOX IN BOTTOM OF Jul 23, 1997 · N3203Y · Boeing 747128 · Turbine Engine Oil System
Back to Pratt & Whitney JT9D-7A