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 TWRA9619Engine · damagedNR 1 ENGINE SHUTDOWN IN FLIGHT DUE TO LOUD BANG. RETURNED TO LIMA, PERU. NR 1 ENGINE EXPERIENCED TURBINE FAILURE. ENGINE REPLACED. (M)Apr 6, 1996 · N617FF · Boeing 747121 · Engine (Turbine/Turboprop)SDR UPS96405892Frame · crackedWHILE IN FOR C-CHECK, MAINTENANCE REPORTED AFT CARGO COMP FOUND CRACKED IN FRAME UPPER FLANGE AT BS 1580 RT NEAR RT SIDE GUIDE. STOP DRILLED CRACK AND REPAIRED FRAME UPPER FLANGE ACC SRM 53-10-04, FIG 66.Mar 27, 1996 · N676UP · Boeing 747123 · Fuselage Main, FrameSDR 96UAL900209Hinge Tape · tornDURING ROUTINE OVERHAUL OF SLIDE, FOUND TORN HINGE TAPE AT LEFT HAND OUTBOARD INTERNAL BULKHEAD. ADDITIONALLY FOUND BULKHEAD SEPARATION EXTENDING APPROXIMATELY 2.5 INCHES FROM TOP END. UNIT SENT TO OEM FOR REPAIR.Mar 21, 1996 · N4727U · Boeing 747122 · Escape SlideSDR 9606746601Condition Motor · malfunctionedDURING TAXIING, THE NR 3 ENGINE EXPERIENCED HOT START AND EGT CLIMBED TO 900 DEGREES. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 3 ENGINE CONDITION MOTOR AND PERFORMED RUNUP CHECK. RUNMar 20, 1996 · N601US · Boeing 747151 · Engine EGT/TIT Indicating SystemSDR P5CA9600161Tr Unit · malfunctionedNR 3 ENGINE OVERTEMPED IN REVERSE, EGT REACHED 920 DEGREES. VISUALLY INSPECTED ENGINE INTAKE AND TAILPIPE, NO DAMAGE FOUND. REVERSER DEACTIVATED, PENDING RABS SYSTEM CHECK AT JFK.Mar 17, 1996 · N859FT · Boeing 747123 · Engine Thrust ReverserSDR P5CA9600160Prbc Line · leakingAT TOP OF DESCENT, NR 4 ENGINE COMPRESSOR STALLED WITH EGT RISE, SHUTDOWN ENGINE AND RESTARTED. ENGINE STARTED AND STABILIZED NORMALLY, USED ENGINE FOR REMAINDER OF FLIGHT, OPS NORMAL. PERFORMED BLEED CHECK, BORESCOPE AND PT2 LEAK CHECK, FOUND FLEX LINE FROMMar 16, 1996 · N858FT · Boeing 747123 · Compressor Bleed ControlSDR 9606066603Filter · dirtyDURING CRUISE AT FL330, THE NR 1 AND NR 4 ENGINES FLAMED OUT SIMULTANEOUSLY. RESTART WAS SUCCESSFUL AND THE FLIGHT CONTINUED TO NRT WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED CROSS FEED VALVE OPERATIONAL CHECK, FUEL TRANSFER VALVE CROSS FEED MANIFOLD INMar 13, 1996 · N603US · Boeing 747151 · Engine Fuel DistributionSDR TWRA9611Fuel Filter · contaminatedON MARCH 11, 1996, AIRCRAFT, FLIGHT 42, ON DESCENT FROM FL 350 TO FL 330 EXPERIENCED A NR 1 ENGINE SHUT DOWN DUE TO NO THROTTLE RESPONSE. ENGINE WAS RESTARTED AT FL 330, AIRCRAFT LANDED WITH NO FURTHER INCIDENTS. UPON LANDING, MAINTENANCE FOUND FUEL FILTER CMar 11, 1996 · N604FF · Boeing 747121 · Engine Fuel DistributionSDR UPS96405614Engine · failedCREW REPORTED EN ROUTE TO YQX, NR 2 ENGINE FAILED AT 16:21Z. N2 SEIZED, EGT PEAKED AT 935 DEGREES. CREW ACCOMPLISHED ALL APPLICABLE CHECKLIST PROCEDURES PER AOM. PERFORMED UNEVENTFUL LANDING AT GANDER, NEWFOUNDLAND, 17:47Z.Mar 6, 1996 · N682UP · Boeing 747121 · Engine (Turbine/Turboprop)SDR 96UAL900167Slide · failed testSLIDE FAILED AIR RETENTION TEST DURING OVERHAUL. AIR RETENTION FAILED DUE TO SLIDE POROSITY. SLIDE SCRAPPED.Mar 5, 1996 · N4727U · Boeing 747122 · Escape SlideSDR 96UAL900168Slide · failed testSLIDE FAILED AIR RETENTION TEST DURING OVERHAUL. AIR RETENTION FAILED DUE TO SLIDE POROSITY. SLIDE SCRAPPED.Mar 5, 1996 · N4717U · Boeing 747122 · Escape SlideSDR 96UAL900169Slide · failed testSLIDE FAILED AIR RETENTION TEST DURING OVERHAUL. FAILED DUE TO POROSITY. SLIDE SCRAPPED.Mar 5, 1996 · N4735U · Boeing 747122 · Escape SlideSDR 96UAL900151Breather Tube · crackedFIRE WARNING IN NR 1 ENGINE. NR 3 BEARING BREATHER TUBE AT 1 O'CLOCK WAS FOUND TO BE CRACKED FORWARD OF SEAL RING GROOVES. THIS CRACKED TUBE ALLOWED 15TH STAGE HOT AIR TO ENTER THE 7TH STAGE BUFFER AIR COMPARTMENT.Feb 27, 1996 · N4719U · Boeing 747122 · Turbine Engine Oil SystemSDR 96ZZZX1145Gearbox · wornFEBRUARY 21, 1996, CI-641, HKG/BKK. NR 1 ENGINE SHUT DOWN DUE TO OIL QUANTITY DROP TO ZERO AND OIL PRESSURE 20 PSI, WINDMILL AT FL 390 7 MINS MINUS 59 DEGREES CELSIUS. GROUND CHECK FOUND MAIN GEAR BOX WORN. NR 1 ENGINE CHANGED.Feb 21, 1996 · N4522V · Boeing 747SP09 · Turbine Engine Accessory DriveSDR 96UAL900132Aspirator · shearedDURING TEST INFLATION OF DOOR 5 RT SLIDE, AT OVERHAUL ONE ASPIRATOR SHEARED IN TWO. SHEAR POINT IS LOCATED BELOW THE RETAINING BANDS WHICH HOLD THE ASPIRATOR IN PLACE. REPLACED ASPIRATOR, RETURNED DAMAGED ASPIRATOR TO OEM FOR ANALYSIS.Feb 20, 1996 · N4728U · Boeing 747122 · Emergency EquipmentSDR 96UAL900134Light · failedOVERWING EMERGENCY LIGHT ON LEFT SIDE INOP. REPLACED LIGHT.Feb 20, 1996 · N4729U · Boeing 747122 · Emergency LightingSDR P5CA9600143Egt Indication · highON TAKEOFF, NR 3 EGT WENT TO 920 DEGREES FOR APPROX 45 SECONDS. ALL OTHER INDICATIONS NORMAL AND NO ABNORMAL PERFORMANCE FOR REST OF FLIGHT. PERFORMED REQUIRED INSPECTIONS FOR CATEGORY A ITEMS PER MM 72-00-00 PG 680L 3 B, SATISFACTORY.Feb 19, 1996 · N858FT · Boeing 747123 · Engine EGT/TIT Indicating SystemSDR 9603776603Engine · birdstrikeDURING CLIMB, THE NR 2 ENGINE INGESTED BIRD AND SUBSEQUENT COMPRESSOR STALL AND IFSD. CREW FOLLOWED COCKPIT OPERATING PROCEDURE, DUMPED 40,000 POUNDS OF FUEL, AND RETURNED TO NRT WITHOUT FURTHER INCIDENT. REPLACED THE NR 2 ENGINE DUE TO 5TH HP DAMAGED. CHECFeb 14, 1996 · N603US · Boeing 747151 · Engine (Turbine/Turboprop)SDR 96UAL900113Slide · failed testDURING OVERHAUL, DOOR 2 RIGHT SLIDE FAILED AIR RETENTION TEST DUE TO POROSITY ON BOTH FILL TUBES. PATCHED AREAS OF POROSITY.Feb 14, 1996 · N4718U · Boeing 747122 · Emergency EquipmentSDR 96UAL900114Slide · failed testDURING OVERHAUL, DOOR 2 RIGHT SLIDE FAILED AIR RETENTION TEST DUE TO POROSITY ON BOTH FILL TUBES, TOP PUSHER TUBE AND CROSS TUBE. PATCHED AREAS OF POROSITY.Feb 14, 1996 · N153UA · Boeing 747123 · Emergency EquipmentSDR 96UAL900115Pusher Tube · failed testDURING OVERHAUL, DOOR 2 SLIDE FAILED AIR RETENTION TEST DUE TO POROSITY ON THE TOP PUSHER TUBE. PUSHER TUBE REPLACED BY OEM.Feb 14, 1996 · N154UA · Boeing 747123 · Emergency EquipmentSDR P5CA9600134Engine · failedON CLIMBOUT, NR 4 FILTER BYPASS LIGHT CAME ON LEAVING 5,000 FEET. THE NR 4 THROTTLE RETARDED TO IDLE, OIL QTY WENT TO ZERO, OIL TEMP TO 150, SHUTDOWN ENGINE, DUMPED FUEL AND RETURNED TO CALI. ENGINE DID NOT SURGE, TAKEOFF EGT WAS NORMAL, ZERO OIL PRESSURE DUFeb 11, 1996 · N858FT · Boeing 747123 · Engine (Turbine/Turboprop)SDR 9603326603Turbine · damagedEN ROUTE, THE NR 1 ENGINE STALLED AND IFSD WAS ACCOMPLISHED. RESTART WAS ATTEMPTED, BUT FAILED. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND RETURNED TO NRT. VISUAL INSPECTION REVEALED METAL IN THE TAILPIPE AND A 6TH STAGE TURBINE DAMAGE. REPLACED NR 1 ENFeb 9, 1996 · N603US · Boeing 747151 · Turbine SectionSDR P5CA9600133Fuel Filter · contaminatedAFTER LEAVING BLOCKS, WHILE ADVANCING POWER, NR 2 ENGINE FLAMED OUT. INSPECTED ENGINE, FOUND MAIN FUEL FILTER CONTAMINATED WITH DIRT, PAINT AND DEBRIS. REPLACED FUEL FILTER IAW MM 73-21-02, FUEL PUMP AND FCU IAW MM 73-11-01, OPS CHECK NORMAL. AS PRECAUTIONAFeb 9, 1996 · N858FT · Boeing 747123 · Engine Fuel DistributionSDR 96ZZZX1242Engine · failedJFK - FLT 884 - DURING CLIMB, SHUT DOWN NR 1 ENGINE, SN 4187, DUE TO COMPRESSOR STALL ACCOMPANIED BY INCREASING EGT AND DECREASING RPM. FOUND METAL PARTICLES IN TAILPIPE. REPLACED ENGINE AND ENGINE OPERATION CHECKED NORMAL. ENGINE TT: 80,615 HRS; 14,493 CYFeb 8, 1996 · N134TW · Boeing 747156 · Engine (Turbine/Turboprop)SDR 96UAL900092Strip · inoperativeEMERGENCY ESCAPE LIGHTING INOP AT ROWS 37-49, RIGHT AISLE. REPLACED LIGHT STRIP.Feb 6, 1996 · N4717U · Boeing 747122 · Emergency LightingSDR SRAA19601Filters · dirtyFLT 6216 - LOS-JNB - DURING FLIGHT ALL FOUR ENGINE ICING LIGHTS ILLUMINATED AND WOULD NOT EXTINGUISH WITH FUEL HEAT ON. CONTINUED FLIGHT TO JNB AND LANDED WITHOUT INCIDENTS. INITIAL INSPECTION OF ENGINE FUEL FILTERS SHOW EVIDENCE OF RUST COLORED DEPOSITS. DJan 29, 1996 · N745SJ · Boeing 747212B · Engine Fuel DistributionSDR 96FDEA00125Gearbox · failedSYD - DURING CLIMBOUT, SHUT NR 4 ENG DOWN DUE TO LOSS OF OIL QTY LOW PRESS AND ILLUM OF OIL PRESS LIGHT. FLIGHT RETURNED TO SYDNEY. WINDMILL TIME PER CREW SAFETY REPORT 24 MIN. FOUND DE-AERATOR BROKEN. REPLACED MAIN GEARBOX ASSY AS PER PRATT AND WHITNEY JTJan 26, 1996 · N638FE · Boeing 747245F · Turbine Engine Accessory DriveSDR P5CA9600058Vane · crackedFOUND CRACK ON NR 4 ENGINE CASCADE VANE. CRACK TREATED IAW SRM 51-10-02.Jan 24, 1996 · N855FT · Boeing 747124 · Compressor Bleed ControlSDR P5CA9600066Bracket · crackedFOUND SKIN SEPARATION WITH SMALL CRACK IN ENGINE FAN COWL TOP BRACKED AFT MOUNT FITTING GROOVE ON NR 2 ENGINE. INSTALLED NEW SKIN IAW SRM 51-30-02.Jan 24, 1996 · N855FT · Boeing 747124 · Engine Cowling SystemSDR P5CA9600067Cowl · chafedFOUND UPPER EDGE CHAFED ON 4R ENGINE SIDE COWL. FABRICATED STRAP AND REPAIRED IAW SRM 51-40-02.Jan 24, 1996 · N855FT · Boeing 747124 · Engine Cowling SystemSDR P5CA9600074Cowl · crackedFOUND LOWER AFT CORNER OF NR 3 LT FAN COWL CRACKED, NR 3 RT FAN COWL CRACKED AT OLD REPAIR. REPAIRED IAW SRM 51-40-06.Jan 24, 1996 · N855FT · Boeing 747124 · Engine Cowling SystemSDR P5CA9600075Cowl · crackedFOUND CRACK IN OLD REPAIR OF NR 1 RT FAN COWL. REPAIRED IAW SRM 51-40-06.Jan 24, 1996 · N855FT · Boeing 747124 · Engine Cowling SystemSDR 96UAL900057Battery · dischargedEMERGENCY LIGHTS INOP IN THE CEILING AT ROW 38 AND LAVATORY 117. REPLACED BATTERY PACK AND CHECKS OK.Jan 23, 1996 · N153UA · Boeing 747123 · Emergency LightingSDR P5CA9600024Sleeve · crackedFOUND TURBINE REVERSER SLEEVE CRACKED BETWEEN TWO PREVIOUS REPAIRS. REPAIRED IAW SRM 54-30-03. REPAIR INCLUDES BOTH PREVIOUS REPAIRS.Jan 23, 1996 · N853FT · Boeing 747122 · Turbine SectionSDR P5CA9600022Fuel Control · malfunctionedNR 4 ENGINE FLAME-OUT AT 29,000 FT, ATTEMPTED ENGINE RESTART, UNSUCCESSFUL. FLIGHT RETURNED TO MIAMI. REPLACED FCU, FUEL PUMP, TT2 SENSOR IAW MM 73-11 01 AND 73-21 01. LEAK CHECK AND RUNUP OK.Jan 20, 1996 · N852FT · Boeing 747122 · Fuel Control/Turbine EnginesSDR P5CA9600170Mount Plate · crackedFOUND NR 4 TT2 SENSOR MOUNT PLATES CRACKED. PLATES REPLACED ND SENSOR, REINSTALLED AS PER MM 73-21-04. LEAK CHECK SATISFACTORY.Jan 18, 1996 · N853FT · Boeing 747122 · Engine BMEP/Torque IndicatingSDR 96UAL900039Aspirator Assy · inoperativeCREW SLIDE FOUND WITH LARGE WAD OF PACKING PAPER BLOCKING ASPIRATOR FLAPPER DOORS. REMOVED ASPIRATOR FROM SLIDE AND REMOVED PAPER WAD. PAPER WAS INSTALLED IN THE ASPIRATOR AFTER MANUFACTURE TO PREVENT DOORS FROM OPENING/CLOSING DURING SHIPPING. PAPER NOT REJan 17, 1996 · N4729U · Boeing 747122 · Emergency EquipmentSDR TWRA9605Compressor · stalledGYC - DURING CLIMB AT FL 270, NR 3 ENGINE HAD A COMPRESSOR STALL (LOUD BANG) AND EGT WENT TO 1,000 DEGREES FOR 8 SECONDS. ENGINE WAS SHUT DOWN IAW CHECK LIST. UPON LANDING, MAINTENANCE FOUND METAL IN THE TAILPIPE. AIRCRAFT WAS SET UP FOR 3-ENGINE FERRY PER Jan 16, 1996 · N613FF · Boeing 747121 · Turbine Engine Compressor SectionSDR P5CA9600098Bracket · crackedFOUND CRACKED BRACKET AT FLANGE 'P' AT APPROX 1 O'CLOCK OF NR 3 ENGINE. CRACKED BRACKET REPLACED IAW MM 72-50-00.Jan 5, 1996 · N854FT · Boeing 747122 · Turbine SectionSDR P5CA9600121S Flange · crackedFOUND NR 3 ENGINE S-FLANGE CRACKED AT 1:30 O'CLOCK POSITION. WELDING CARRIED OUT IAW AMS 58-17.Jan 5, 1996 · N854FT · Boeing 747122 · Turbine SectionSDR P5CA9600101Bracket · crackedNR 3 ENGINE TT2 SENSOR SUPPORT BRACKET AND MOUNTING PLATE FOUND CRACKED. REPAIRED AND REINSTALLED IAW MM 73-21-04.Jan 4, 1996 · N854FT · Boeing 747122 · Fuel Controlling SystemSDR P5CA9600123R-Flange · crackedFOUND NR 4 ENGINE RIGHT HAND R-FLANGE CRACKED AT 3:30 POSITION. WELDED IAW AMS 58-17 IAW P/W 72-53-01.Jan 4, 1996 · N854FT · Boeing 747122 · Turbine SectionSDR P5CA9600104Bracket · crackedNR 2 PYLON TT2 SENSOR BRACKET FOUND CRACKED. BRACKET REPLACED PER MM 73-22-02.Jan 3, 1996 · N854FT · Boeing 747122 · Fuel Controlling SystemSDR P5CA9600108S Flange · crackedNR 2 ENGINE S-FLANGE FOUND CRACKED AT 5:30 O'CLOCK POSITION. REPAIRED IAW MM 72-53-02.Jan 2, 1996 · N854FT · Boeing 747122 · Turbine SectionSDR 95UAL900343Engine · flamed-outENGINE FLAME-OUT ON LANDING.Dec 26, 1995 · N157UA · Boeing 747123 · Engine (Turbine/Turboprop)SDR P5CA9500877Fan Blades · fodDISCOVERED FAN BLADE DAMAGE NUMBERS 1, 2 AND 3 ENGINES, DUE TO ICE INGESTION. BLENDED BLADES TO FLYBACK LIMITS AT EWE AND AT JFK REPLACED COMPLETE SET OF FAN BLADES ON NR 2 ENGINE. BLENDED AND REPLACED MATCHED SETS NR 1 AND NR 3 ENGINE IAW MM 72-31-02.Dec 25, 1995 · N855FT · Boeing 747124 · Turbine Engine Compressor SectionSDR TWRA9571Evc · wornDURING CLIMB-OUT, FLIGHT CREW EXPERIENCED AN OIL SMELL IN THE COCKPIT AND CABIN. SMELL CLEARED AFTER POWER WAS REDUCED. REPLACED NR 2 ENGINE'S ENGINE VANE CONTROL. (X)Dec 16, 1995 · N611FF · Boeing 747282B · Compressor Bleed ControlSDR UPS405139Compressor · stalledCREW REPORTED EN ROUTE TO HKG, NR 2 ENG SHUTDOWN DUE TO SEVERE COMPRESSOR STALL CLIMBING THROUGH 11,000 FEET. EGT RECORDED AT 1096 DEGREES, ENG SHUTDOWN IAW ENG SEVERE DAMAGE CHECK LIST. REMOVED AND REPLACED NR 2 ENG PER MM TC5000. OPS AND LEAK CHECK GOOD. Dec 11, 1995 · N681UP · Boeing 747121 · Turbine Engine Compressor SectionSDR P5CA9500870Engine · bird strikeAT 7500 FEET WHILE BEING VECTORED FOR APPROACH AT NIGHT ENCOUNTERED BIRD FLOCK, HAD MULTIPLE BIRD STRIKES. WEATHER CONDITIONS, SCATTERED BROKEN LAYERS. NO ABNORMAL ENGINE OR FLIGHT INSTRUMENT INDICATIONS NOTED, NORMAL APPROACH AND LANDING FOLLOWING BIRD STRIDec 10, 1995 · N859FT · Boeing 747123 · Engine (Turbine/Turboprop)
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