Pratt & Whitney JT9D-7A

Service difficulty reports · 593

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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 97UAL900553Elbow · failedDURING DESCENT, NUMBER THREE ENGINE OIL QUANTITY WENT TO ZERO AND THE OIL PRESSURE EVENTUALLY REDUCED TO ZERO. AN IN FLIGHT SHUT DOWN OCCURRED. *S/D* THE FLANGED ELBOW ATTACHED TO THE OIL STRAINER HOUSING FAILED. THE CYLINDRICAL PORTION OF THE ELBOW SEPARAJul 16, 1997 · N157UA · Boeing 747123 · Turbine Engine Oil SystemSDR 97UAL900582Beam · crackedFATIGUE CRACK FOUND ON FOWARD LOWER CORNER OF DOOR FOUR RIGHT. CRACKING IS SIMILAR TO THAT REFERENCED IN SERVICE BULLETIN 747-52-2168. THERE WAS NO COLLISION OR CORROSION DAMAGE. HOWEVER, AN OLD SHEETMETAL REPAIR ON THE BEAM MAY HAVE CREATED A STRESS CONCENJul 14, 1997 · N4723U · Boeing 747122 · Passenger/Crew DoorsSDR TWRA97165Engine · failedAFTER TAEKOFF AT AVOVE 200 FT, NR 2 ENGINE EGT RAPIDLY INCREASED TO APPROX 975 DEGREES CELSIUS FOR 10 SECONDS. RETRACED THROTTLE N1 AND EPR DROPPED EGT GRADUALLY DECREASED, HEAVY VIBRATION EVEN AT IDLE. ENGINE SHUT DOWN. ACCOMPLISHED PER ALT AND EMERGENCY PJul 14, 1997 · N617FF · Boeing 747121 · Engine (Turbine/Turboprop)SDR 97UAL900517Line · leakingLOSS OF ALL HYDRAULIC FLUID ON NR 1 SYSTEM. *S/D* LEAKING LINE, REPLACED LINE AND UNION.Jul 9, 1997 · N4729U · Boeing 747122 · Hydraulic System, MainSDR EIAA970180Engine · failedNFFN - LOG PAGE E04350 - AT 1,500 MSL DURING INITIAL POWER REDACTION, NR 3 ENGINE COMPRESSOR STALLED. EPR N1 AND N2 WENT DOWN, EGT MAXED AT 1000. SHUT DOWN ENGINE. METAL FOUND IN THE TAIL PIPE. REMOVED AND REPLACED NR 3. (X)Jul 7, 1997 · N478EV · Boeing 747SR46 · Engine (Turbine/Turboprop)SDR TWAA9775002Engine · failedLGW - FLT 883 - DURING CLIMB, NR 3 ENGINE, SN 4144, OIL QUANTITY WENT TO ZERO. ENGINE SHUT DOWN IN-FLIGHT. CHANGED ENGINE, SN 4144. ENGINE TOTAL TIME: 73,992 HOURS; 14,322 CYCLES. CHECK C - 3-20-97 - JFK. (X)Jul 4, 1997 · N303TW · Boeing 747257B · Engine (Turbine/Turboprop)SDR TWRA97159Oil Cap · missingFIVE MINUTES AFTER TAKEOFF, ENGINE NR 1 LOW OIL PRESSURE LIGHT STARTED TO FLICKER WITH 32 TO 37 PSI OF ENGINE OIL PRESSURE OSCILLATING INDICATION. ENGINE OIL QTY DROPPED TO 0.5 USG. OIL TEMP STARTED TO RISE UP TO 120 DEGREES CELSIUS. RETARDING THRUST LEVER Jun 29, 1997 · N611FF · Boeing 747282B · Turbine Engine Oil SystemSDR P5CA9701191'R' Rail · crackedNR 2 ENGINE 'R' RAIL CRACKED. REPAIRED, WELD IAW 72-53-01 AND 70-42-04.Jun 27, 1997 · N852FT · Boeing 747122 · Turbine SectionSDR P5CA9701209Outer Case · damagedNR 3 ENGINE OUTER CASE AT 11 O'CLOCK POSITION DAMAGED. REPAIRED PER BOEING SRM 51-40-02, 852F.Jun 27, 1997 · N852FT · Boeing 747122 · Turbine SectionSDR P5CA9701169O-Ring · pinchedNR 4 ENGINE OIL QUANTITY DECREASED TO ZERO IN FLIGHT, RATE OF DECREASE 1.5 GALLONS PER HOUR. LOW OIL PRESSURE LIGHT ILLUMINATED WITH LOW OIL PRESSURE INDICATED ENGINE SHUT DOWN. REPLACED PINCHED O-RING ON MAIN OIL FILTER HOUSING PER MAINTENANCE MANUAL 72-61-Jun 20, 1997 · N858FT · Boeing 747123 · Turbine Engine Oil SystemSDR P5CA9701189Engine · stalledIMMEDIATELY AFTER TAKEOFF AT TAKEOFF THRUST, NR 3 ENGINE APPEARED TO STALL. EGT APPEARED TO HAVE PEAKED AT 975 DEGREES ACCORDING TO THE MAX EGT POINTER ON THE EGT GAUGE. THE THROTTLE WAS SUBSEQUENTLY RETARDED AND ALL ENGINE PARAMETERS WERE NORMAL. CONTROL TJun 18, 1997 · N853FT · Boeing 747122 · Engine (Turbine/Turboprop)SDR 97ZZZX3723Comb Chamber · crackedON INITIAL CLIMB, NR 2 ENGINE OVERTEMP LIGHT ILLUMINATED (970 DEGREE CELSIUS INDICATED). PARAMETERS RAN DOWN AND ENGINE FIRE CHECK LIST CARRIED OUT. A THREE-ENGINE APPROACH AND LANDING CARRIED OUT FOLLOWING FUEL DUMP PROCEDURE. GROUND CHECKS REVEALED ENGINEJun 16, 1997 · Boeing 747136 · Turbine Engine Combustion SectionSDR TWRA97138Prbc · malfunctionTOD NR 3 ENGINE STALLED EGT INCREASED, SECURED ENGINE. A RESTART WAS ACCOMPLISHED IN A DESCENT. ALL PARAMETERS NORMAL. THE ENGINE RAN NORMALLY FOR THE REMAINDER OF THE FLIGHT. PERFORMED PRESSURE CHECK OF PT2, FOUND NORMAL. PERFORMED VISUAL INSPECTION OF IJun 9, 1997 · N608FF · Boeing 747131 · Compressor Bleed ValveSDR P5CA9700553Insert · strippedNR 4 ENGINE SHUT DOWN DUE TO LOW OIL QUANTITY AND LOW OIL PRESSURE. ENGINE WINDMILLED WITH N1 30 PERCENT, N2 2 PERCENT, OIL PRESSURE 10 PSI, OIL TEM 50 DEGREES. FOUND ANGLE GEAR BOX COVER LOOSE REPLACED MOUNT BOLT BUSHING PER M/M 72-61-00. PERFORMED GEAR BOMay 28, 1997 · N858FT · Boeing 747123 · Turbine Engine Accessory DriveSDR P5CA9700554Engine · over tempAFTER ENGINE START FOR TAXI, NR 1 ENGINE SHUT DOWN DUE TO HIGH EGT (NOTE TAIL WIND), DIGITAL RECORDING EGT INDICATOR SHOWS 1100 DEGREES FOR 64 SEC. BORESCOPE INSPECTED COMBUSTION SECTION AND TURBINE SECTIONS PER BOEING M/M 72-00-00. FOUND FUEL NOZZLES, HPT SMay 28, 1997 · N857FT · Boeing 747132 · Engine (Turbine/Turboprop)SDR P5CA9700538R/S Rail · crackedNR 1 ENG R AND S RAIL AT 6:00 POSITION HAS RADIAL LIGHTENING HOLE CRACKS. WELDED AND STRESS RELIEVED PER MM 72-53-01.May 24, 1997 · N857FT · Boeing 747132 · Turbine SectionSDR 97UAL900397Carbon Seal · damagedNR 4 ENGINE SHUTDOWN DUE TO LOSS OF OIL PRESSURE. LANDED AT LAX UNDER AMBER ALERT. *S/D* CSD QUICK ATTACH DEVICE WORKED LOOSE CAUSING EXCESSIVE PRESSURE ON THE GEARBOX CARBON SEAL. SEAL CRACKED CAUSING OIL LOSS. SEALS WERE REPLACED.May 23, 1997 · N4728U · Boeing 747122 · Turbine Engine Accessory DriveSDR P5CA9700524O-Ring · leakingNR 4 ENGINE OIL QUANTITY DROPPED TO 0 AND OIL PRESSURE LIGHT CAME ON. SHUT DOWN ENGINE, WINDMILL TIME 22 MINUTES WITH ZERO OIL PRESSURE AND QUANTITY. FOUND PACKING LEAKING AT BOTTOM OF TOWER SHAFT REPLACED PACKING PER M/M 72-61-00 PAGE 1, COMPLIED WITH WINDMMay 23, 1997 · N858FT · Boeing 747123 · Turbine Engine Accessory DriveSDR 9710126601Engine · flamed outNR 4 ENGINE FLAMED OUT AT FL370 WITH IGNITION OFF AND CONDITIONS CALM. RESTART AT FL290 OK. NO FURTHER PROBLEMS. MAINTENANCE INSPECTED INLET AND EXHAUST, FOUND OK. FUEL FILTER WAS CLEAN. REPLACED THE TT2 SENSOR, HIGH POWER RUN CHECKED NORMAL. SPECIFIC PAMay 22, 1997 · N601US · Boeing 747151 · Engine (Turbine/Turboprop)SDR P5CA9700525Fan Blades · wornNR 4 ENGINE FAN BLADES ARE SHINGLING (EXCESSIVE AXIAL MOVEMENT AT BLADE ROOT). REPLACED COMPLETE SET OF 46 BLADES PER WORK CARD M7220-001.May 22, 1997 · N3203Y · Boeing 747128 · Turbine Engine Compressor SectionSDR P5CA9700866Mount Lug · brokenNR 3 ENG HIGH STG BLEED CONTROLLER HAS ONE MOUNT LUG BROKEN. REPLACED AND TEST REF NRC 5821.May 21, 1997 · N855FT · Boeing 747124 · Compressor Bleed ControlSDR 9709386601Engine · malfunctionedDURING TAXI, THE NR 4 ENGINE EGT WENT TO TOP OF GAUGE FOR APPROXIMATELY 90 TO 120 SECONDS. ALSO, NR 4 ENGINE OIL RPESSURE WARNING LIGHT ILLUMINATED. NO FIRE WARNING AND OIL TEMPERATURE WAS NORMAL. MAINTENANCE INSPECTED ENGINE PER MM 72-00-00. NO DEFECTS WEMay 13, 1997 · N601US · Boeing 747151 · Engine (Turbine/Turboprop)SDR P5CA9700521Tt2 Sensor · malfunctionedJUST PRIOR TO DESCENT, NR 1 ENG WOULD NOT RESPOND TO THROTTLE MOVEMENT BETWEEN FLIGHT LEVELS 35.0 AND 25.0. EPR .95; EGT 600 C; FUEL/FLOW 2700 N1 59 PERCENT. CREW TRIED A RAPID RESTART AT 250 KTS, NO HELP ENG ANTI-ICE ON ALL FUEL PUMPS, TRIED FUEL HEAT BOTH IMay 12, 1997 · N853FT · Boeing 747122 · Fuel Controlling SystemSDR 97UAL900357Light · failedEMERGENCY ESCAPE LIGHTING INOP ROWS 1 AND 2L. REPLACED EMERGENCY ESCAPE LIGHTING STRIPS ROWS 1 AND 2L, OPERATION CHECKS NORMAL.May 7, 1997 · N4732U · Boeing 747122 · Emergency LightingSDR P5CA9700515S Rail · crackedNR 2 ENGINE S-RAIL CRACKED 3 PLACES. REMOVED ENGINE FOR EXHAUST CASE REPLACEMENT PER POLAR AIR CARGO WORK CARD M7100-002.May 5, 1997 · N852FT · Boeing 747122 · Turbine SectionSDR EIAA970090Engine · malfunctionedJFK - AT FL290, .84 MACH, SMOOTH AIR, NR 4 ENGINE EMITTED A LOUD POP, THEN EGT RAPIDLY CLIMBED TO 910 DEGREES CELSIUS, AND THRUST LOST. WINDMILL N1 AND N2 RPM OK. OIL TEMP, PRESSURE AND FUEL FLOW WERE OK. ENGINE WAS SHUT DOWN IN FLIGHT. ACCOMPLISHED INSPECMay 4, 1997 · N480EV · Boeing 747121 · Engine (Turbine/Turboprop)SDR 9708836603Bleed Vlv Screen · out of positionDURING TAKEOFF ROLL, THE NR 1 ENGINE EPR RESPONDED SLOWER WITH N1 2 TO 3 PERCENT LESS THAN THE OTHER ENGINES. THE NR 1 ENGINE EGT ENTERED RED WITH MAX EGT OF 925C. TAKEOFF WAS ABORTED AT 90 KNOTS. MAINTENANCE INSPECTED INLET AND TAILPIPE. FOUND THE UPPER 4May 2, 1997 · N603US · Boeing 747151 · Compressor Bleed ValveSDR P5CA9700504Engine · failedAT 08:57 Z FLIGHT LEVEL 29,700, NR 4 ENGINE COMPRESSOR STALLED EGT WENT TO 908 DEGREES CELSIUS AND ALL OTHER PARAMATERS REMAINED NORMAL. SHUT DOWN NR 4 ENGINE I/A/W POLAR PROCEDURE. FOUND METAL IN TAIL PIPE. ENGINE REPLACED PER POLAR AIR CARGO FORM M7100-00Apr 17, 1997 · N852FT · Boeing 747122 · Engine (Turbine/Turboprop)SDR 97UAL900303Gear Shaft · wornNR 2 ENGINE OIL PRESSURE DROPPED TO ZERO ACCOMPANIED WITH A LOW PRESSURE WARNING LIGHT. ENGINE WAS SHUTDOWN AND AIRCRAFT RETURNED TO FIELD. *S/D* GEAR TEETH OF GEAR SHAFT ASSEMBLY WORN. REPLACED ENTIRE ENGINE, OPERATION CHECKS NORMAL.Apr 15, 1997 · N153UA · Boeing 747123 · Turbine Engine Accessory DriveSDR 97UAL900288Rod Assy · brokenAFTER LANDING, THE TRAILING EDGE AFT FLAP FORWARD CONTROL ROD ASSEMBLY AT THE NR 6 POSITION WAS FOUND BROKEN. THE BROKEN CONTROL ROD ALSO DAMAGED THE MOVABLE FLAP FAIRING. THE BROKEN CONTROL ROD WAS REPLACED. THE MOVABLE FLAP FAIRING WAS REPAIRED, OPERATIONApr 11, 1997 · N153UA · Boeing 747123 · Trailing Edge Flap Control SystemSDR 97UAL900259Engine · stalledNR 3 ENGINE STALLED DURING CLIMB-OUT. EGT OVERTEMP. AIRCRAFT RETURNED TO FIELD. OVERWEIGHT LANDING.Apr 3, 1997 · N4723U · Boeing 747122 · Engine (Turbine/Turboprop)SDR 97UAL900244Actuator · failedAFTER TAKEOFF, LEFT WING DOOR LIGHT ILLUMINATED IN BOTH PRIMARY AND ALTERNATE POSITION ACCOMPANIED WITH RED DOOR AND GEAR LIGHT. AIRCRAFT RETURNED TO BKK. REPLACED LEFT WING DOOR ACTUATOR PER MAINTENANCE MANUAL. OPERATION CHECKS NORMAL.Mar 28, 1997 · N4735U · Boeing 747122 · Landing Gear Door ActuatorSDR 97UAL900270Actuator · failedAFTER TAKEOFF ON GEAR RETRACTION, LEFT WING GEAR AND DOOR LIGHT ILLUMINATED. LIGHT ON IN BOTH PRIMARY AND ALTERNATE POSITIONS. FOLLOWED IRREGULAR PROCEDURES, LIGHTS REMAINED ON. FLIGHT RETURNED TO BKK. RETRACT ACTUATOR ROD END BEARING BROKEN. INNER BEARINMar 28, 1997 · N4735U · Boeing 747122 · Landing Gear ActuatorSDR TWRA9744Oil Filter · dirtyTHREE MINUTE INTO CLIMB NR 4 ENGINE LOWER OIL PRESSURE LIGHT ILLUMINATED. RETARDED TO 55 PERCENT N1 BEFORE LT WOULD EXTINGUISH. CHANGED OIL FILTER AND CHECKED OIL BYPASS SWITCH AND LOW OIL PRESS SWITCH. RESERVICED ENGINE ENGINE, RUN CHECKS OK PER 71-00-00 TMar 28, 1997 · N609FF · Boeing 747121 · Turbine Engine Oil SystemSDR P5CA9700446Engine · failedIN CRUISE, NR 2 ENGINE OIL FILTER BYPASS LIGHT CAME ON. ENGINE PULLED BACK TO IDLE, OIL TEMP BEGAN TO RISE, SHUTDOWN ENGINE AT 148 DEGREES. INSPECTED, FOUND OIL BLACK AND GUMMY. ACCOMPLISHED BOEING M/M PROCEDURE 71-00-44. ON ENGINE RUN UP, OIL COMING FROM Mar 19, 1997 · N3203Y · Boeing 747128 · Engine (Turbine/Turboprop)SDR 97UAL900217Strip · inoperativeEMERGENCY EXIT LIGHTING BETWEEN MED'S NR 5 INOP. REPLACED EMERGENCY EXIT LIGHTING STRIP. OPERATION CHECKS NORMAL.Mar 17, 1997 · N4718U · Boeing 747122 · Emergency LightingSDR 97UAL900218Battery Pack · dischargedEMERGENCY EXIT SIGNS FAILED TO ILLUMINATE DURING EMERGENCY LIGHT CHECK. REPLACED BATTERY PACK. OPERATION CHECKS NORMAL.Mar 17, 1997 · N4723U · Boeing 747122 · Emergency LightingSDR 97UAL900206Tire · looseABORTED TAKEOFF AT 110 KNOTS DUE TO VIBRATION AND PULLING TO THE RIGHT. *S/D* DISCOVERED TIRE AT POSITION 7F (NR 13) LOOSE. RETORQUED ALL TIRE POSITIONS ON RBLG AND RWLG. REPLACED TIRE AT POSITION 7F, OPERATION CHECKS NORMAL.Mar 15, 1997 · N155UA · Boeing 747123 · TireSDR 97UAL900204Sequence Valve · failedAIRCRAFT RETURNED TO FIELD DUE TO LANDING GEAR DOOR WARNING LIGHT. *S/D* REPLACED LWLG UPLOCK SEQUENCE VALVE, SWUNG GEAR SEVERAL TIMES. ACCOMPLISHED VERIFICATION FLIGHT PERFORMING SEVERAL GEAR EXTENSIONS/RETRACTIONS, OPERATION CHECKS NORMAL.Mar 12, 1997 · N4735U · Boeing 747122 · Landing Gear Retraction/Extension SystemSDR 97UAL900192Skin · crackedLONGITUDINAL CRACK IN SKIN PANEL APPROXIMATELY 1 INCH LONG AT STATION 2022. CRACK IS 0.5 INCH ABOVE AND OUTBOARD OF STRINGER 45 CENTERLINE. THE CRACK IS BETWEEN FASTENERS BUT NOT CONNECTING THEM. REPAIRED CRACK USING APPROVED STRUCTURAL REPAIR MANUAL PROCEDMar 10, 1997 · N4718U · Boeing 747122 · Fuselage Main, Plate/SkinSDR 97UAL900211Fitting · crackedMAIN LANDING GEAR (BODY) TRUNNION BACK-UP FITTING WAS CRACKED AND CORRODED. TRUNNION FITTING REPLACED WITH NEW FITTING.Mar 10, 1997 · N157UA · Boeing 747123 · Main Landing Gear Attach SectionSDR P5CA9700425Turbine · failedNR 3 ENGINE COMPRESSOR STALLED ON TAKEOFF AT NAN 140 KTS, EGT PEGGED OUT HIGH. REPLACED ENGINE PER POLAR AIR ENGINE CHANGE WORK CARDS.Mar 10, 1997 · N3203Y · Boeing 747128 · Turbine SectionSDR P5CA9700431Breather · crackedNR 2 ENGINE BREATHER EXHAUST IS CRACKED. CRACK WELDED, REPAIRED PER P AND W 70-42-1 OVERHAUL MANUAL CHPT 4. ALUM. INSP REPAIR PER NDT PART 6, 54-10-01. NO CRACK FOUND.Mar 8, 1997 · N3203Y · Boeing 747128 · Turbine Engine Oil SystemSDR 97UAL900205Sequence Valve · malfunctionedAFTER TAKEOFF, LEFT BODY GEAR DOOR AND LEFT WING DOOR OPEN LIGHTS ILLUMINATED. AIRCRAFT RETURNED TO FIELD. *S/D* REPLACED LBLG UPLOCK SEQUENCE VALVE, LEFT BODY GEAR DOOR SEQUENCE VALVE, AND LWG DOOR SEQUENCE VALVE. GEAR SWUNG SEVERAL TIMES, OPERATION CHECKMar 7, 1997 · N4735U · Boeing 747122 · Landing Gear Retraction/Extension SystemSDR P5CA9700390Case · crackedNR 3 ENG 'S' RAIL CRACKED AT 60 DEG POSITION ON TURBINE EXHAUST CASE TEC. REPAIRED WELDED AND STRESS RELIEVED PER MM 72-53-01 CASE CYCLE 6A.Mar 6, 1997 · N856FT · Boeing 747132 · Turbine SectionSDR P5CA9700385Engine · failedNR 3 ENGINE AUDIBLE SURGE AND SHUT DOWN, EGT 960 FOR 1 SEC. RETURNED TO MIA. FOUND METAL IN 3.5 BLEED INDICATING ENGINE FAILURE. ENGINE REPLACED PER BOEING MAINTENANCE MANUAL USING POLAR AIR WORK CARD M 7100-002.Mar 3, 1997 · N855FT · Boeing 747124 · Engine (Turbine/Turboprop)SDR TWRA9723Pt2 Probe · brokenDURING THRUST REDUCTION AT TOP OF DESCENT, NR 2 ENGINE EXPERIENCED COMPRESSOR STALL. EGT REACHED 710 DEGREES AND ENGINE WAS SHUT DOWN. TWO ATTEMPTS TO RESTART TO IDLE AND RICH WERE UNSUCCESSFUL. ENGINE WINDMILLING OIL PRESSURE 22 PSI. ENGINE WAS SHUT DOWN Feb 18, 1997 · N606FF · Boeing 747136 · Fuel Controlling SystemSDR 97UAL900134Oil Bypass Light · illuminatedNR 3 ENGINE SHUTDOWN IN FLIGHT DUE TO OIL FILTER BYPASS WARNING LIGHT.Feb 12, 1997 · N154UA · Boeing 747123 · Engine Oil Indicating SystemSDR P5CA9700277Spinner · delaminatedNR 3 ENGINE INTAKE SPINNER AND CAP PROTECTIVE COATING CHIPPED AND DELAMINATED. SANDED AND CLEANED SPINNER AND CAP APPLY FIBERGLASS OVERLAYS I/A/W 72-31-01 AND PROTECTIVE COATING.Feb 10, 1997 · N858FT · Boeing 747123 · Turbine Engine Air Inlet SectionSDR 97UAL900126Oil Bypass Light · illuminatedNR 3 ENGINE SHUT DOWN INFLIGHT DUE TO OIL FILTER BYPASS LIGHT ON.Feb 8, 1997 · N154UA · Boeing 747123 · Engine Oil Indicating System
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