# Pratt & Whitney JT9D-7F

- Type: Engine model (FAA registry)
- Registry code: 51545
- Manufacturer (registry): P & W
- Model: JT9D-7F
- Engine type: Turbo-fan
- Power: 46,750 lb thrust
- Data sheet: [TCDS E20EA](https://openairdocs.org/tcds/E20EA) (OpenAirDocs)
- Holder: Pratt & Whitney
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-jt9d-7f

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2021-09-10](https://openairdocs.org/ad/2021-09-10): Turbine Engine Compressor Section · Pratt & Whitney JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 27, 2021
- [AD 2009-04-18](https://openairdocs.org/ad/2009-04-18): 2nd stage high pressure turbine (HPT) · Pratt & Whitney Division JT9D-7, JT9D-7A, JT9D-7AH and 3 more. Effective May 5, 2009
- [AD 2004-10-01](https://openairdocs.org/ad/2004-10-01): 6th Stage Low Pressure Turbine (LPT) Air Seals · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Jun 15, 2004
- [AD 2003-24-12 R1](https://openairdocs.org/ad/2003-24-12-R1): Gearbox Pressure Tube · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Dec 18, 2003
- [AD 2001-04-11](https://openairdocs.org/ad/2001-04-11): High Pressure Turbine (HPT) Disks · Pratt & Whitney Division JT9D-20, JT9D-7, JT9D-7A and 7 more. Effective May 7, 2001
- [AD 2000-23-14](https://openairdocs.org/ad/2000-23-14): No. 4 Bearing Area · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 11 more. Effective Jan 19, 2001
- [AD 99-15-02](https://openairdocs.org/ad/99-15-02): Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Aug 16, 1999
- [AD 96-25-10](https://openairdocs.org/ad/96-25-10): Design Turbine Exhaust Case · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Feb 18, 1997
- [AD 93-19-02 R1](https://openairdocs.org/ad/93-19-02-R1): Diffuser Cases · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Oct 17, 1994
- [AD 94-15-16](https://openairdocs.org/ad/94-15-16): Engine Control System Accessories · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 9 more. Effective Oct 14, 1994
- [AD 90-23-19](https://openairdocs.org/ad/90-23-19): Air Seal · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 13 more. Effective Nov 23, 1990
- [AD 89-10-07](https://openairdocs.org/ad/89-10-07): Strut Insert Assembly · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective May 30, 1989
- [AD 88-24-05](https://openairdocs.org/ad/88-24-05): Inner Airseal · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective Dec 15, 1988
- [AD 86-09-01 R1](https://openairdocs.org/ad/86-09-01-R1): Turbine Vane Antirotation Pin Failure · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-59A and 9 more. Effective Jul 6, 1988
- [AD 85-12-02](https://openairdocs.org/ad/85-12-02): Centrifugal Oil Filter (COF) Bearings · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Jul 17, 1985
- [AD 82-26-03](https://openairdocs.org/ad/82-26-03): Manifold Assembly · Pratt & Whitney Division JT9D-7, JT9D-7A, JT9D-7AH and 3 more. Effective Jan 27, 1983
- [AD 78-08-13](https://openairdocs.org/ad/78-08-13): Main Gearbox · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Apr 18, 1980
- [AD 78-16-05](https://openairdocs.org/ad/78-16-05): Sixth Stage Turbine Disks · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Sep 12, 1978
- [AD 78-17-08](https://openairdocs.org/ad/78-17-08): Fifteenth Stage Compressor Disks · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective Sep 1, 1978
- [AD 76-20-03](https://openairdocs.org/ad/76-20-03): Seal Clearances · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 4 more. Effective Nov 16, 1977
- [AD 76-24-03](https://openairdocs.org/ad/76-24-03): Fan Blades · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Dec 30, 1976
- [AD 76-12-03](https://openairdocs.org/ad/76-12-03): Sixth Stage Turbine Disk · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Jun 22, 1976
- [AD 73-16-05](https://openairdocs.org/ad/73-16-05): Fourth and Fifth Stage Turbine Discs · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Aug 15, 1973
- [AD 77-01-07](https://openairdocs.org/ad/77-01-07): Fifth Stage Turbine Hubs · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 4 more

Historical (superseded or no longer in force):

- [AD 2012-04-15](https://openairdocs.org/ad/2012-04-15) (historical): Engine · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective Apr 23, 2012
- [AD 2007-05-17](https://openairdocs.org/ad/2007-05-17) (historical): Airworthiness Limitations Section (ALS) · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-7 and 15 more. Effective Apr 12, 2007
- [AD 2003-24-12](https://openairdocs.org/ad/2003-24-12) (historical): Gearbox pressure tube · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Dec 18, 2003
- [AD 2002-08-11](https://openairdocs.org/ad/2002-08-11) (historical): Airworthiness Limitations Section (ALS) - Critical Life-Limited Parts · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 28, 2002
- [AD 2000-01-13](https://openairdocs.org/ad/2000-01-13) (historical): Pratt & Whitney Division JT9D-7, JT9D-70A, JT9D-7A and 13 more. Effective Feb 23, 2000
- [AD 99-08-12](https://openairdocs.org/ad/99-08-12) (historical): Maintenance Program, Mandatory Inspections · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective May 13, 1999

## Information bulletins (advisory) (1)

- [SAIB NE-02-01](https://openairdocs.org/saib/NE-02-01): . Issued Oct 5, 2001

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (129, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR EIAA2011007](https://openairdocs.org/sdr/EIAA2011007), Jan 21, 2011: ENGINE. STALLED. ON LANDING NR 2 ENGINE N1 WENT TO 75 PERCENT FOLLOWED BY COMPRESSER STALL DURING REVERSE, FOLLOWED BY FIRE WARNING LIGHTS. LEFT AND RIGHT FIRE BOTTELS USED TO E
- [SDR EIA2008019](https://openairdocs.org/sdr/EIA2008019), Apr 23, 2008: ENGINE. FAILED. NUMBER 3 ENGINE FAILED AT 35,000 FEET DESCENT TO FL 32.0 NORMAL INFLIGHT RESTART ALL ENGINE PARAMETERS WERE NORMAL. PERFORMED ENG WINDMILL INSPECTION PER B747MM
- [SDR KCSA071372](https://openairdocs.org/sdr/KCSA071372), Sep 13, 2007: FRAME. CRACKED. B S 520 FUSELAGE FRAME CRACKED AT STR-11L CUTOUT.
- [SDR KCSA071266](https://openairdocs.org/sdr/KCSA071266), Jul 30, 2007: BULKHEAD. SCRATCHED. NR1 PYLON STA-221, AFT BULKHEAD HAS SCRATCH ABOVE HYDRULIC LINE FEED THROUGH.
- [SDR KCSA071267](https://openairdocs.org/sdr/KCSA071267), Jul 30, 2007: STRINGER. DAMAGED. BS 668 STRINGER 44L HAS SMALL DAMAGED AREA.
- [SDR KCSA071268](https://openairdocs.org/sdr/KCSA071268), Jul 30, 2007: SEAT TRACK. DAMAGED. STA-1250 LBL-99 SEAT TRACK HAS DAMAGE TO CARGO SYSTEM LOCKING HOLES.
- [SDR EIA2006223](https://openairdocs.org/sdr/EIA2006223), Aug 22, 2006: SENSOR. MALFUNCTIONED. DURING DESCENT INTO EDF, FL90, FLIGHT CREW REPORTED FEELING RUMBLE IN AIRFRAME. FLIGHT CREW NOTICE NR 4 ENGINE INDICATED N1 & N2 WERE LOWER THAN OTHER ENGINES. 
- [SDR EIA200677](https://openairdocs.org/sdr/EIA200677), May 16, 2006: CLUTCH. MALFUNCTIONED. ALL FOUR ENGINE THROTTLE LEVERS WILL NOT GO INTO REVERSE. CLUTCH PACK REMOVED AT 0300Z/17. CONFIRMED CLUTCH PACK FAULTY. T/R LEVERS SEIZED WITH CLUTCH PACK ISOL
- [SDR KCSA06039](https://openairdocs.org/sdr/KCSA06039), May 12, 2006: ENGINE. MALFUNCTIONED. NR 3 ENG FLAMED OUT ON DESCENT, PERFORMED RAPID RESTART PROCEDURE TWICE NO START. PERFORMED ENG RESTART CHECKLIST AT 10,000 ENG OPERATED NORMALLY. PERFORMED INS
- [SDR EIA2006075](https://openairdocs.org/sdr/EIA2006075), May 12, 2006: SENSOR. DAMAGED. AT FL 380, PWR WAS REDUCED FOR SPEED CONTROL AND WAS NOT RESPONSIVE UNTIL REACHING FL 250. REPLACED NR 3 TT2 SENSOR AS PER MM 72-21-04, OPS CHK GOOD PER MM 71-0
- [SDR EIA2006066](https://openairdocs.org/sdr/EIA2006066), May 11, 2006: ENGINE. STALLED. WHILE DESCENDING FORM FL370 TO FL350, NR 3 ENGINE WENT INTO UNRECOVERABLE STALL. NO FLAMEOUT, VIBRATION OR EXCEEDENCES NOTED. NO SUCCESS WITH TWO ATTEMPTS TO RE
- [SDR EIA2006065](https://openairdocs.org/sdr/EIA2006065), May 2, 2006: ENGINE. OIL CONSUMPTION. AIRCRAFT NR 1 ENGINE HIGH OIL CONSUMPTION. SENT TO MZJ TO REPLACE ENGINE, 663076 OFF, 662500 ON.
- [SDR 0600226716](https://openairdocs.org/sdr/0600226716), Jan 20, 2006: FLOORBEAM. CRACKED. DURING H-CHECK, FOUND CRACK ON UPPER DECK FLOORBEAM FASTENER HOLE AT BS 340 RBL 42. REPAIRED IAW EA 67-165190.
- [SDR 0501576718](https://openairdocs.org/sdr/0501576718), Sep 16, 2005: FRAME. CORRODED. DURING L-CHECK FOUND CORROSION AND CRACK ON FRAME IN LT BLG WHEEL WELL AT BS 1146. REPAIRED IAW EA 67-165244.
- [SDR 0501566718](https://openairdocs.org/sdr/0501566718), Sep 15, 2005: FRAME. CRACKED. DURING L-CHECK FOUND CRACK IN FRAME AT BS 380 S27R AND S28R. REPAIRED IAW EA 67-165241.
- [SDR EIA2004107](https://openairdocs.org/sdr/EIA2004107), Oct 7, 2004: ENGINE. MALFUNCTIONED. ON TAKE OFF ROLL, NR 3 ENGINE WOULD NOT SPOOL UP. THRUST LEVER AT 3/4 TRAVEL, EPR 1.034, N1 42.3 PERCENT, N2 95.8 PERCENT, EGT 761 DEG, FUEL FLOW 4795. REMOVED 
- [SDR EIA2004045](https://openairdocs.org/sdr/EIA2004045), Jul 7, 2004: WARNING LIGHT. ILLUMINATED. AFTER TAKEOFF (3000 FT), NR 4 ENGINE FIRE SWITCH ILLUMINATED BELL SOUNDED AND MACELL INDICATOR READ APPROX 9.5 ON A/B LOOPS PERFORMED ENGINE SHUT DOWN IAW EMERG
- [SDR EIA2004036](https://openairdocs.org/sdr/EIA2004036), May 13, 2004: WARNING SYSTEM. ACTIVATED. NR 2 ENGINE OIL QUANTITY DECREASED TO 1/16 LOW OIL PRESS LIGHT ILLUMINATED. SHUT DOWN NR 2 ENG AT 0305Z WINDMILL OIL PRESSURE 15 PSI FOR 57 MINUTES.
- [SDR EIA2004005](https://openairdocs.org/sdr/EIA2004005), Jan 12, 2004: GUIDE VANE. MISSING. ON POST FLIGHT WALKAROUND FOUND FAN EXIT GUIDE VANE MISSING AT 6:30 POSITION ON NR 4 ENGINE. VANE STRUCK T/E OF T/R SLEEVE CAUSING TEAR AT 6:30 POSITION AND PUT
- [SDR EIA2003045](https://openairdocs.org/sdr/EIA2003045), Mar 2, 2003: VALVE. FAILED. NR 3 ENGINE ANTI-ICE VALVE INOPERATIVE. REPLACED NR 3 ENGINE ANTI-ICE VALVE, OPS AND LOCK CHECK, OK. IAW 30-21-03 AND 30-21-00.
- [SDR 200200185](https://openairdocs.org/sdr/200200185), Mar 21, 2002: FLANGE. CRACKED. CRACK FROM -R- FLANGE LIGHTENING HOLE TO THE OUTER FLANGE AT THE 6 O'CLOCK POSITION. WELDED PER EIA ECRA 685755-72-010-1 AND 747 MM 72-53-02.
- [SDR P5CA0100594](https://openairdocs.org/sdr/P5CA0100594), Sep 20, 2001: ENGINE. MALFUNCTIONED. WHEN THROTTLES WERE RETARDED FOR DESCENT, NR 2 ENG HAD EXCESSIVE VIBRATION FOLLOWED BY UNCLEARABLE STALL CONDITION. ENG SHUTDOWN WAS ACCOMPLISHED NORMALLY. LUBR
- [SDR EIA2001116](https://openairdocs.org/sdr/EIA2001116), Mar 20, 2001: ENGINE. FAILED. CGK - NR 1 ENGINE SHUTDOWN IN FLIGHT AT 39,000 FEET, ON DESCENT TRIED TO START. N2 56 PERCENT EGT CLIMBED TO 948 RAPIDLY. ENGINE SHUTDOWN AFTER GOING THROUGH TU
- [SDR EIA2000042](https://openairdocs.org/sdr/EIA2000042), Aug 23, 2000: ENGINE. FOD. PHL - ON TAKEOFF ROLL, INGESTED 1-2 GEESE IN NR 1 ENGINE. ABORTED TAKEOFF. MAJOR DAMAGE TO NR 1 ENGINE, FLAMEOUT, OVERTEMP AND SEIZED. SUSTAINED IMPACT DAMAGE T
- [SDR CA981230051](https://openairdocs.org/sdr/CA981230051), Dec 11, 1998: TIRE. FAILED. (CAN) REPORTED BY TOWER, FOUND RECAP ON RUNWAY AFTER DEPARTURE, AIRCRAFT RETURNED AND FOUND NR 6 TIRE BLOWN, CHANGED TIRE AND AXLE MATE.
- [SDR EIAA980326](https://openairdocs.org/sdr/EIAA980326), Oct 16, 1998: ENGINE. BIRDSTRIKE. HKG - NR 1 ENGINE STALLED AFTER BIRDSTRIKE, EGT PEGGED GAUGE, N1, N2, EPR AND FUEL FLOW ROLLED BACK TO APPROX 60 PERCENT N1, NORMAL ENGINE OPERATION RETURNED AF
- [SDR EIAA980320](https://openairdocs.org/sdr/EIAA980320), Oct 11, 1998: SWITCH. FAILED. JFK - IN CRUISE, NR 4 ENGINE START VALVE OPEN LIGHT CAME ON. SHUTDOWN ENGINE. N1 32 PERCENT, N2 24 PERCENT, OIL PRESSURE 20 PSI. REPLACED START VALVE SWITCH PER
- [SDR TWRA9844](https://openairdocs.org/sdr/TWRA9844), Aug 6, 1998: TURBINE. CRACKED. DURING ROUTINE INSPECTION, AN .9375 INCH CRACK WAS FOUND ON THE LOW PRESSURE TURBINE CASE EXITING OUT OF THE EGT THERMAL COUPLE PORT AT THE 1 O'CLOCK POSITION. 
- [SDR 9809696614](https://openairdocs.org/sdr/9809696614), Jun 26, 1998: ENGINE. FLAMED OUT. WHILE CLIMBING THROUGH FL340, THE NR 2 ENGINE FLAMED OUT. THE ENGINES WERE RESTARTED APPROXIMATELY ONE MINUTE LATER WITH NORMAL INDICATIONS. THE FLIGHT CONTINUE
- [SDR CALA9801144](https://openairdocs.org/sdr/CALA9801144), Jun 19, 1998: ENGINE. FAILED. THE NR 1 ENGINE EXPERIENCED COMPRESSOR STALLS AND AUTOMATICALLY SHUTDOWN AFTER TAKEOFF FROM GUM. THE ENGINE FAILURE WAS ACCOMPANIED BY A LOUD BANG. FUEL WAS DUM
- [SDR P5CA9800797](https://openairdocs.org/sdr/P5CA9800797), May 28, 1998: SEAL. LEAKING. NR 4 ENGINE LOST OIL QTY AND PRESSURE. OIL PRESSURE LIGHT CAME ON AND TEMP BEGAN TO RISE. ENGINE SHUT DOWN. FOUND OIL LEAK TO BE FROM CSD PAD. REPLACED CSD SEAL
- [SDR 9807656729](https://openairdocs.org/sdr/9807656729), Apr 26, 1998: COMPRESSOR. STALLED. DURING LANDING ROLLOUT, WHILE IN REVERSE THRUST, THE NR 3 ENGINE EXPERIENCED A MINOR COMPRESSOR STALL. EGT REACHED MAXIMUM OF 740C BEFORE THE ENGINE WAS SHUT DO
- [SDR 9806976718](https://openairdocs.org/sdr/9806976718), Apr 19, 1998: TACHOMETER. MALFUNCTIONED. DURING TAKEOFF ROLL AT APPROXIMATELY 115 KTS, THE NR 4 ENGINE N1 RPM INDICATION MALFUNCTIONED. THE TAKEOFF WAS ABORTED. MAINTENANCE PLACED THE NR 4 ENGINE N1 IN
- [SDR CA980417004](https://openairdocs.org/sdr/CA980417004), Mar 28, 1998: LOCALIZER. MALFUNCTIONED. (CAN) ON ILS APPROACH, CAPTAIN'S GLIDE SLOPE SHOWED FULL SCALE HIGH. ON PASSING NDB/BEACON AT WHAT SHOULD HAVE BEEN FL 230, AIRCRAFT WAS BELOW GLIDE SLOPE, FIRS
- [SDR 9804966613](https://openairdocs.org/sdr/9804966613), Mar 24, 1998: ENGINE. MALFUNCTIONED. DURING CRUISE, THE CREW NOTICED THE NR 3 ENGINE OIL CONSUMPTION TO BE UNUSUALLY HIGH. THE OIL CONSUMPTION DECREASED WITH LOWER POWER SETTINGS SO THE AIRCRAFT DI
- [SDR 9804876718](https://openairdocs.org/sdr/9804876718), Mar 22, 1998: COMPRESSOR. STALLED. WHILE AT CRUISE FL350, THE NR 1 ENGINE COMPRESSOR STALLED. THE ENGINE WAS SHUT DOWN AFTER REACHING AN EGT OF 1002C FOR 5 SECONDS. NO RESTART WAS ATTEMPTED. THE 
- [SDR 9804836718](https://openairdocs.org/sdr/9804836718), Mar 20, 1998: BREATHER TUBE. CRACKED. WHILE IN CRUISE, THE NR 1 ENGINE OIL QUANTITY WENT TO ZERO WITH THE OIL PRESSURE DROPPING RAPIDLY DOWN TO 8 TO 9 PSI. THE ENGINE WAS SHUT DOWN PER COM PROCEDURE
- [SDR 9803156614](https://openairdocs.org/sdr/9803156614), Feb 14, 1998: COMPRESSOR. STALLED. AFTER LANDING AND JUST AFTER STOWING THE THRUST REVERSERS, THE CREW NOTED THE LOW OIL PRESSURE WARNING LIGHT ON AND EGT INDICATION ABOVE REDLINE FOR THE NR 4 EN
- [SDR CALA9800207](https://openairdocs.org/sdr/CALA9800207), Feb 9, 1998: SENSE LINE. CRACKED. THE NR 2 ENGINE LOST PARTIAL POWER WHILE IN CRUISE FLIGHT FROM HNL TO NRT. THE EPR DROPPED FROM 1.40 TO 1.13 AND N1 DROPPED FROM 95 PERCENT TO 85 PERCENT. THE A
- [SDR 9802296613](https://openairdocs.org/sdr/9802296613), Feb 6, 1998: ENGINE. FLAMED OUT. JUST BEFORE TOP OF DESCENT AT FL370, THE NR 4 ENGINE FLAMED OUT. THE ENGINE WAS RESTARTED NORMALLY AT FL310 AND PERFORMED WITHOUT ANY PROBLEMS FOR THE REMAINEDE
- [SDR 9802206729](https://openairdocs.org/sdr/9802206729), Feb 1, 1998: ENGINE. FAILED. APPROXIMATELY 30 MINUTES AFTER TAKEOFF, THE NR 2 ENGINE FILTER BYPASS WARNING LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO ANC. MAIN
- [SDR CALA9800104](https://openairdocs.org/sdr/CALA9800104), Jan 23, 1998: GARLOCK SEAL. LEAKING. THE NR 3 ENGINE OIL QUANTITY DECREASED TO ZERO WHILE EN ROUTE. THE NR 3 ENGINE WAS SHUTDOWN AND THE AIRCRAFT LANDED AT HNL WITHOUT INCIDENT. MAINTENANCE FOUND O
- [SDR TWRA9802](https://openairdocs.org/sdr/TWRA9802), Jan 13, 1998: FUEL CONTROL. MALFUNCTIONED. WHILE CRUISING AT F/L 330, SMOOTH AIR, NR 3 ENGINE FLAMED OUT, FUEL PANEL SETTING WAS TANK TO ENGINE. USED TOWER AIR PROCEDURES FOR INFLIGHT START ENGINE RESTAR
- [SDR 9800366717](https://openairdocs.org/sdr/9800366717), Jan 5, 1998: ENGINE. FAILED. ON FINAL APPROACH, THE CREW NOTICED THE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED FOR THE NR 1 ENGINE. AFTER LANDING, THE NR 1 ENGINE EGT EXCEEDED REDLINE AND 
- [SDR 9724566717](https://openairdocs.org/sdr/9724566717), Dec 31, 1997: ENGINE. FLAMED OUT. AT APPROXIMATELY 3000 FEET WHILE DESCENDING TO LAND, THE NR 1 ENGINE FLAMED OUT. MAX EGT AFT FLAMEOUT WAS 800C. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANC
- [SDR EIAA970202](https://openairdocs.org/sdr/EIAA970202), Nov 4, 1997: LINE. LEAKING. ANC - LOG PAGE: F47048 - 2.5 HOURS INTO FLIGHT, NR 1 ENGINE OIL QTY WAS DOWN TO 1/2 ON THE GAUGE. REMOVED EXHAUST PLUG AND FOUND TRACE OF OIL AROUND PRESSURE LI
- [SDR P5CA9701692](https://openairdocs.org/sdr/P5CA9701692), Oct 18, 1997: CSD SEAL. LEAKING. NR 4 ENGINE OIL QUANTITY STEADILY DECREASED TO ZERO FROM FULL, APPROXIMATELY 1 HOUR AFTER DEPARTURE. ENGINE SHUT DOWN WHEN OIL PRESSURE LIGHT ILLUMINATED. REPLA
- [SDR 9719276612](https://openairdocs.org/sdr/9719276612), Oct 14, 1997: EVC. MALFUNCTIONED. DURING FINAL APPROACH, THE NR 1 ENGINE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED WITH THE INDICATED PRESSURE AT 25 PSI AND FALLING. THE EGT INDICATED 850C AND 
- [SDR EIAA970199](https://openairdocs.org/sdr/EIAA970199), Oct 14, 1997: FUEL FILTER. CONTAMINATED. HKG - LOG PAGE: F47136 - UNSCHEDULED THRUST LOSS OF THROTTLE MOVEMENT DURING DESCENT. PERFORMED ENGINE SHUT DOWN. INSPECTED ENGINE, FOUND FUEL FILTER CONTAMINAT
- [SDR 9717686730](https://openairdocs.org/sdr/9717686730), Sep 18, 1997: START VALVE. FAILED. DURING CRUISE FLIGHT, NR 2 ENGINE STAT VALVE OPEN LIGHT ILLUMINATED. PERFORMED NR 2 ENGINE PRECAUTIONARY SHUTDOWN. FLIGHT CREW DUMPED 100,000 LBS OF FUEL AND DI

All 129: https://openairdocs.org/engine/pratt-whitney-jt9d-7f/reports.md

## STCs that may be installed (OpenAirDocs) (10)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE2338SO](https://openairdocs.org/stc/SE2338SO): Installation of an oil tank safety cap adapter which prevents oil loss in the event of loss or damage to the filler cap. Jet Avion Corporation
- [STC SE00024EN](https://openairdocs.org/stc/SE00024EN): Installation of oil tank filler neck check valve. Helicopter Support Inc Services Div
- [STC SE01543CH](https://openairdocs.org/stc/SE01543CH): Replace Hamilton Sundstrand P/N 778839-13, 778839-14, 778839-19, 778839-20, 778839-37, 778839-38, 816682-1, 840618-2, 880724 carbon bushings with Cook Airtomic P/N AIR22947 Slotted Entry Busing in the High Pressure Shutoff Valve. Cook Airtomic
- [STC SE00402NY](https://openairdocs.org/stc/SE00402NY): Installation of corrosion resistant steel replacement Chip Detectors. Vickers Inc. Lists JT9D Series
- [STC SE497NE](https://openairdocs.org/stc/SE497NE): Installation of oil tank filler neck check valve assembly. Aviation Components Support
- [STC SE2888SO-D](https://openairdocs.org/stc/SE2888SO-D): Modify turbine exhaust case to incorporate Model -20 mount features. Aero Component Technologies
- [STC SE593NE](https://openairdocs.org/stc/SE593NE): Installation of a Select Controls Inc. Engine Oil Shuttle Valve, P/N 2057-1-001. (See Eligibility List). Basken Valve Corporation. Lists JT9D Series
- [STC SE435NE](https://openairdocs.org/stc/SE435NE): Installation of an oil tank filler opening shuttle valve. Stockbridge William D
- [STC SA2227SO](https://openairdocs.org/stc/SA2227SO): Installation of wiring and associated components for utilization of the Rolls Royce, Inc., ARINC, interface/readers UT1317 or UT1317/1, for the purpose of acquisition, recording, and analysis in real time of engine/aircraft/ systems. (767 SERIES POWERED BY RR RB-11-524 SERIES. Rolls Royce, Inc. Lists JT9D Series
- [STC SE33NE](https://openairdocs.org/stc/SE33NE): Incorporation of improved combustor and turbine components which permit operation at increased EGT limits. Pratt & Whitney Aircraft Grp

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [WF335297](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132393134320250602133021.0001): Filter Element, Oil. Donaldson Company Inc · PMA PQ2432CE · Replaces 815189, Alternate: AD-B863F-65Y4 · May 23, 2025
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149540485520240306163131.0001): Bleed Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 728244 · Apr 7, 2023
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120575539320231218190434.0001): Bleed Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 728244 · Apr 7, 2023
- [787V500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199627737420230914183247.0001): Air Cooling Shutoff Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 770051 Rev. B (10-26-77) · Mar 29, 2023
- [684V800](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188649902420230914183251.0001): Thermostat Flow Control. Honeywell International Inc. · PMA PQ1222NM · Replaces 756796 Rev. B (8-22-90) · Mar 29, 2023
- [426V600](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183757188420230914183253.0001): Solenoid Bleed Override Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 655005 Rev. C (8-23-90) · Mar 29, 2023
- [666V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181891677520230914183252.0001): Fuel Check Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 706354 Rev. C (8-6-90) · Mar 29, 2023
- [449V450-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180455150620230914183250.0001): Linear Directional Control Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 729728 · Mar 29, 2023
- [684V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164424510920230914183254.0001): Rotor & Stator Assy.. Honeywell International Inc. · PMA PQ1222NM · Replaces 711742 Rev G. (4-2-76) · Mar 29, 2023
- [696V300](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158650076720230914183255.0001): Fuel Control Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 715672 Rev. C (8-22-90) · Mar 29, 2023
- [787V900](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129148698520230914183249.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 777835 Rev. A (8/90) · Mar 29, 2023
- [787V1100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126878908320230914183250.0001): Turbine Case Cooling Air Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 779290 Rev. C (9-14-90) · Mar 29, 2023
- [DEC06- 003-501](https://drs.faa.gov/browse/excelExternalWindow/E2F24218F1DE901086258629005AC423.0001): Seal, Shaft, Stationary. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 218304 · Nov 16, 2020
- [753224WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID615615407820210611172456.0001): C-Ring, Internal Pressure. Wencor LLC · PMA PQ1370NM · Replaces 753224 & 786426 · Oct 15, 2020
- [733726WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID213268376120210611172313.0001): Pin, Shoulder Headless, 0.156 X 0.100 X 0.300 X 6.720. Wencor LLC · PMA PQ1370NM · Replaces 733726 · Oct 15, 2020
- [715118WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129247679920210611172135.0001): Pin, Straight Headed, .1705 X .305, Slab. Wencor LLC · PMA PQ1370NM · Replaces 715118 · Oct 15, 2020
- [44ASP290A](https://drs.faa.gov/browse/excelExternalWindow/7FB2193B6C55D03A862585D20064276A.0001): Switch Assembly. AeroSpares MCO · PMA PQ04350CE · Replaces 815386 801941 788012 795111 · Jul 23, 2020
- [44ASP290](https://drs.faa.gov/browse/excelExternalWindow/0A4B0D1F038BAFFE862585D200642719.0001): Switch Assembly. AeroSpares MCO · PMA PQ04350CE · Replaces 801941 788012 795111 · Jul 23, 2020
- [K39268-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197377551820240703183024.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 711436 · Apr 1, 2020
- [K29109-5-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193294423120240703182956.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638834 · Apr 1, 2020
- [MF39839-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188406426920240703183032.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 743080 · Apr 1, 2020
- [H19942-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187988695520240703182923.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 490276 · Apr 1, 2020
- [K49502-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185716762720240703182917.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 4021907 · Apr 1, 2020
- [H29118-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182787335020240703182936.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618097 · Apr 1, 2020
- [H29220-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181748590020240703182959.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639299 · Apr 1, 2020
- [F49342-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174539824620240703183024.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 711481 · Apr 1, 2020
- [H22-5PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169651563520240703182915.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 395037 · Apr 1, 2020
- [H19943-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168561015520240703182921.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 488594 · Apr 1, 2020
- [MK1031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167837965920240703183021.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707842 · Apr 1, 2020
- [H29220-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167487504120240703183000.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639335 · Apr 1, 2020
- [K29109-4-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167318037720240703182950.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638671 · Apr 1, 2020
- [MK1031-4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165731695120240703183037.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 750691 · Apr 1, 2020
- [CN29116-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162949938820240703182945.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 627798 · Apr 1, 2020
- [CN39971-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160483571020240703183014.0001): Nut, gangchannel,S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677824 · Apr 1, 2020
- [F50030-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157628639820240703183034.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 744238 · Apr 1, 2020
- [K29109-4-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157523208720240703182953.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638674 · Apr 1, 2020
- [H29967-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156944476120240703183005.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 647796 · Apr 1, 2020
- [K29847-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154954438420240703183002.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 646378 · Apr 1, 2020
- [H29117-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154403298820240703182952.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638672 · Apr 1, 2020
- [H19943-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152390320020240703182922.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 490274 · Apr 1, 2020
- [H29112-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152072494720240703182937.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618103 · Apr 1, 2020
- [H29908-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151436919820240703182947.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 627799 · Apr 1, 2020
- [F29968-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148442604620240703183006.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 649373 · Apr 1, 2020
- [K29843-4-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147699109120240703183003.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 646391 · Apr 1, 2020
- [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145706197720240703182942.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020
- [F39244-3BC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143746013920240703183036.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 746922 · Apr 1, 2020
- [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140281191220240703182940.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020
- [MK49975-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135829873420240703183030.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 740742 · Apr 1, 2020
- [K39085-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130771087820240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 650410 · Apr 1, 2020
- [CN50039-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127806516220240703182914.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 2173479 · Apr 1, 2020

All of them: https://openairdocs.org/engine/pratt-whitney-jt9d-7f/pma.md

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