# Pratt & Whitney JT9D-7AH

- Type: Engine model (FAA registry)
- Registry code: 51544
- Manufacturer (registry): P & W
- Model: JT9D-7AH
- Engine type: Turbo-fan
- Power: 46,150 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-7ah

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 (40)

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

- [SDR UPS03440259](https://openairdocs.org/sdr/UPS03440259), Mar 6, 2003: COMPRESSOR. STALLED. AIR TURNBACK NR 3 ENG COMPRESSOR STALL IN CLIMB AT FL190 PAX REPORTED GLOW IN N1 SECTION. EGT RISING, ENG SHUTDOWN. REMOVED AND REPLACED NR ENGINE S/N OFF P6859
- [SDR UPS01437264](https://openairdocs.org/sdr/UPS01437264), Nov 10, 2001: ENGINE. FAILED. INSPECTION TYPE:N/A DURING CLIMBOUT, THE NR 4 ENG SURGED LOUDLY AND VIOLENTLY MULTIPLY TIMES WITH VISIBLE FLAMES SHOOTING OUT OF THE INLET. YAW ASSOCIATED WITH 
- [SDR EIAA2000049](https://openairdocs.org/sdr/EIAA2000049), Sep 20, 2000: O-RING. DAMAGED. KOAK - FLT EIA 2955 - NR 3 ENGINE OIL QUANTITY DROPPED TO 1.5 GALLONS, PRESSURE AT 38 PSI. SHUT DOWN ENGINE AND RETURNED TO OAK. THERMAL DISCHARGE OF 6 TIRES AF
- [SDR UPS00432918](https://openairdocs.org/sdr/UPS00432918), Jun 19, 2000: OIL FILTER. CONTAMINATED. INSPECTION TYPE:SP, NR 2 OIL FILTER BYPASS LIGHT ILLUMINATED IN FLIGHT. SHUTDOWN NR 2 ENGINE IAW CHECKLIST. OIL PRESSURE REMAINED ABOVE 5 PSI. ENTIRE TIME ENGIN
- [SDR UPS00432931](https://openairdocs.org/sdr/UPS00432931), Jun 19, 2000: ENGINE. MALFUNCTIONED. INSPECTION TYPE:N/A, DURING DESCENT WITH NR 4 ENGINE AT IDLE THRUST EPR 1.17, NO-88.0 AND FUEL FLOW WAS 10,000. ACCOMPLISHED INFLIGHT ENGINE SHUTDOWN CHECKLIST.
- [SDR EIA990286](https://openairdocs.org/sdr/EIA990286), Oct 15, 1999: ENGINE. BIRD STRIKE. HNL - NR 1 ENGINE 'N1' INDICATOR HAD INTERMITTENT FLUCT PLUS/MINUS 5 PERCENT ON CLIMB-OUT. FLUCT AT CRUISE PEGGED OVERSPEED INDICE AT 112 PERCENT. RESET INDICE 
- [SDR 99ZZZX4602](https://openairdocs.org/sdr/99ZZZX4602), Sep 30, 1999: LINE. CRACKED. ENGINE EXPERIENCED WHAT APPEARED TO BE A STALL FOLLOWED BY A FIRE WARNING. ENGINE WAS SHUT DOWN AND AN AIR TURN-BACK ACCOMPLISHED. CORE COWL DAMAGE WAS OBSERVED
- [SDR 99ZZZX4184](https://openairdocs.org/sdr/99ZZZX4184), Jun 1, 1999: BLADE. FAILED. ENGINE REMOVED POS 2 AT ANCHORAGE, AK 6-1-98 DUE LOW PRESSURE TURBINE FAILURE. ENGINE RECEIVED FOR MAINTENANCE 1-11-99. DISASSEMBLY INSPECTION REVEALED AN APPAR
- [SDR EIA990116](https://openairdocs.org/sdr/EIA990116), May 7, 1999: BLADE. DAMAGED. BIRDSTRIKE ON THE NR 3 ENGINE. UPON INSPECTION FOUND DAMAGE TO NR 33 AND NR 34 BLADES. REPLACED DAMAGED BLADES PER EIA MAINTENANCE 'F' CARD NR F7208. OPS CHECKE
- [SDR AU990420021](https://openairdocs.org/sdr/AU990420021), Apr 5, 1999: SPACER. UNAPPROVED PART. (AU) DURING INSPECTION A SPACER SUSPECTED OF BEING AN UNAPPROVED PART, WAS FOUND ON A JT9D ENGINE BELLCRANK. THE ENGINE HAD BEEN INDUCTED INTO THE SHOP FOR REFU
- [SDR EIAA990005](https://openairdocs.org/sdr/EIAA990005), Mar 8, 1999: ENGINE. MALFUNCTIONED. JFK - DURING FLIGHT FROM LFPG TO KJFK, FLIGHT CREW REPORTED OIL LOSS FROM THE NR 3 ENGINE. CREW PERFORMED A PRECAUTIONARY SHUTDOWN OF THE SUBJECT ENGINE AND CON
- [SDR CA980720019](https://openairdocs.org/sdr/CA980720019), Jun 29, 1998: ENGINE. SMOKE. (CAN) ON TAKEOFF, THE FLIGHT CREW INITIATED A TURNBACK DUE TO SMELL OF FUMES AND SMOKE SEEN ON THE UPPER DECK. POST-FLIGHT THE LINE CREW NOTICED OIL COMING FROM
- [SDR EIAA98055](https://openairdocs.org/sdr/EIAA98055), Feb 15, 1998: COMPRESSOR. STALLED. NR 2 ENGINE HAD COMPRESSOR STALLED AT FL 390. CHECKED ENGINE PARAMETERS, SHUTDOWN ENGINE. DECLARED AN EMERGENCY TO GET DESCENT CLEARANCE TO FL 310. LANDED YSSY 
- [SDR TWAA9801304](https://openairdocs.org/sdr/TWAA9801304), Jan 22, 1998: OIL PUMP. FAILED. SNN - FLT 883 - ON DESCENT 33,000 FT, OIL PRESS IND FLUX DOWN TO ZERO PSI WITH THROTTLE AT IDLE. WITH ENG AT IDLE ON FINAL OIL PRESS LIGHT ON. ENGINE SHUT DOWN 
- [SDR TWAA9800901](https://openairdocs.org/sdr/TWAA9800901), Jan 17, 1998: GEAR BOX. FAILED. FCO - FLT 883 - DURING CRUISE, NR 2 ENGINE OIL PRESS SLOWLY WENT TO ZERO. SHUT DOWN THE ENGINE. REPLACED OIL PUMP MGR P/N 804659-1 AND GEAR BOX MFG P/N 746450-0
- [SDR TWAA9714904](https://openairdocs.org/sdr/TWAA9714904), Dec 17, 1997: SEAL. WORN. LAX - FLT 1 - DURING CRUISE, EXPERIENCED A LOSS OF OIL IN NR 2 ENGINE. REPLACED NR 3 BEARING SEAL MFG P/N 635496CL4 AND COUPLING MFG P/N 735138. (M)
- [SDR UPS97425271](https://openairdocs.org/sdr/UPS97425271), Nov 26, 1997: GAUGE. MALFUNCTIONED. NR 3 ENG OIL QTY 5.3 PRIOR TO START. 4.3 GAL ON POWER PUSH FOR T/O; DURING CLIMB TO A 26000 LEVEL OFF OIL QTY OBSERVED TO SLOWLY DROP TO 2.6. WHEN POWER REDUCED
- [SDR P5CA9701815](https://openairdocs.org/sdr/P5CA9701815), Nov 3, 1997: SEAL. MISINSTALLED. ENGINE SHUT DOWN AT 21,000 FEET DUE TO LOSS OF NR 1 ENGINE OIL QUANTITY AND LOSS OF OIL PRESSURE WITH INCREASE IN OIL TEMPERATURE OF APPROXIMATELY 25 DEGREES. F
- [SDR P5CA9701559](https://openairdocs.org/sdr/P5CA9701559), Sep 14, 1997: COMPRESSOR. STALLED. ENGINE COMPRESSOR STALL OCCURED DURING TAKEOFF WITH MOMENTARY DIRECTIONAL INSTABILITY, NO UNUSUAL ENGINE INDICATIONS OBSERVED. ABORTED TAKEOFF AND RETURNED TO B
- [SDR P5CA9701453](https://openairdocs.org/sdr/P5CA9701453), Aug 26, 1997: TURBINE CASE. CRACKED. CRACKED R RAIL NR 4 ENGINE AT 300Ý POSITION, RADIUS CRACK TRAVELING TO OUTSIDE DIAMETER. REPAIRED PER PW M/M 72-53-01 REPAIR NR 14.
- [SDR TWAA9798003](https://openairdocs.org/sdr/TWAA9798003), Aug 22, 1997: ENGINE. FAILED. STL - FLT 1 - DURING CLIMB, THE NR 3 ENGINE LOST BOTH OIL QTY AND PRESSURE. SHUT DOWN ENGINE IN FLIGHT. CHANGED ENGINE. (M)
- [SDR P5CA9701420](https://openairdocs.org/sdr/P5CA9701420), Aug 9, 1997: R-RAIL. CRACKED. NR 3 ENGINE 'R' RAIL CRACKED AT 9 O'CLOCK BEHIND LWR PRECOOLER EXHAUST PORT SKIRT. WELDED AND STRESS RELIEVED IAW PWA 72-53-01.
- [SDR CA970624020](https://openairdocs.org/sdr/CA970624020), Jun 4, 1997: HP COMP DISC. CRACKED. (CAN) DURING DISASSEMBLY AND INSPECTION OF THE HIGH PRESSURE COMPRESSOR A CRACK, BEYOND ACCEPTABLE LIMITS, WAS FOUND IN THE BLADE SLOT AREA OF THE 9TH STAGE DIS
- [SDR CA970624021](https://openairdocs.org/sdr/CA970624021), Jun 4, 1997: GASKET ASSEMBLY. PINCHED. (CAN) DURING REMOVAL AND INSPECTION OF THE DIFFUSER CASE, IN THE #3 BEARING COMPARTMENT, A GASKET ASSEMBLY OF SPIRAL WOUND WAS FOUND PINCHED ALLOWING HOT AIR TO
- [SDR P5CA9700468](https://openairdocs.org/sdr/P5CA9700468), Mar 28, 1997: FLANGE. CRACKED. CRACK IN 'R' FLANGE AT 9 O'CLOCK POSITION NR 3 ENG. WELDED IAW P/W 72-53-01 USING GREEK ASCOLOY TIG ROD AND DYE CHECK WELD PER SOPM 20-20-02, NO CRACK. ALSO, ST
- [SDR EIAA9682](https://openairdocs.org/sdr/EIAA9682), Nov 2, 1996: O-RING. CUT. SBGR - DURING CLIMB, NR 2 ENGINE OIL QTY SLOWLY DECREASED TO ZERO, ACCOMPANIED WITH FLUCTUATING OIL PRESSURE. IN FLIGHT ENGINE FAILURE AND SHUTDOWN CHECKLIST CO
- [SDR P5CA9600848](https://openairdocs.org/sdr/P5CA9600848), Oct 25, 1996: TURBINE CASE. CRACKED. CRACKED S-RAIL NR 2 ENGINE, TWO PLACES 5 O'CLOCK AND 7 O'CLOCK. WELDED, STRESS RELIEVED AND FLAP PEENED PER PRATT AND WHITNEY MAINTENANCE MANUAL 72-53-01.
- [SDR EIAA9646](https://openairdocs.org/sdr/EIAA9646), Oct 21, 1996: EVC. MALFUNCTIONED. DURING APPROACH, NR 1 ENGINE FAILED TO RESPOND TO THRUST LEVER MOVEMENTS. OIL PRESSURE LIGHT CAME ON. ACCOMPLISHED ENGINE SHUTDOWN PROCEDURE. ENGINE RUN UP, HUN
- [SDR 96ZZZM1218](https://openairdocs.org/sdr/96ZZZM1218), Jul 7, 1996: ENGINE. FAILED. HNL - DURING CLIMB NR 2 ENGINE, S/N 4115, FIRE WARNING ILLUMINATED. ENGINE WAS SHUTDOWN IN FLIGHT AND AIRCRAFT RETURNED TO HNL WHERE ENGINE WAS CHANGED. ENGINE 
- [SDR TWRA9626](https://openairdocs.org/sdr/TWRA9626), May 10, 1996: TURBINE. FAILED. AT 13,000 FEET AFTER TAKEOFF LOUD BOOM WAS HEARD AND CONFIRMED ENGINE ON NR 3 ENGINE. AFTER RETURN TO JED INITIAL INSPECTION FOUND METAL IN TAILPIPE. BORESCOPE 
- [SDR 95ZZZM749](https://openairdocs.org/sdr/95ZZZM749), Nov 10, 1995: TURBINE BLADES. DAMAGED. HNL - DURING CLIMB, SHUT DOWN NR 1 ENGINE, S/N 4165, DUE TO COMPRESSOR STALL AND RISING EGT. FOUND METAL PARTICLES IN TAILPIPE AND TURBINE BLADE DAMAGE. REPLACE
- [SDR 95ZZZM673](https://openairdocs.org/sdr/95ZZZM673), Oct 30, 1995: ENGINE. OIL LEAK. JFK - DURING CRUISE SHUT DOWN NR 4 ENGINE, S/N 4199, DUE TO DECREASING OIL QUANTITY. FOUND OIL LEAKING IN ENGINE CORE. REPLACED NR 4 ENGINE AND ENGINE OPERATION
- [SDR 97ZZZM86](https://openairdocs.org/sdr/97ZZZM86), Oct 30, 1995: BREATHER. OIL LEAK. JFK - DURING CRUISE SHUT DOWN NR 4 ENGINE, S/N 4199, DUE TO DECREASING OIL QTY. FOUND OIL LEAKING IN ENGINE CORE. REPLACED NR 4 ENGINE AND ENGINE OPERATION CHEC
- [SDR TWRA9557](https://openairdocs.org/sdr/TWRA9557), Oct 29, 1995: ENG VANE CONTROL. FAILED. NR 1 ENGINE STALLED AT TOP OF DESCENT. EGT MAX 778 DEGREES, ENGINE SHUT-DOWN. RE-LIT NORMAL IN DESCENT AT FLIGHT LEVEL 280. ENGINE OPS NORMAL REMAINDER OF FLIGH
- [SDR 95ZZZM678](https://openairdocs.org/sdr/95ZZZM678), Oct 22, 1995: FUEL PUMP. MALFUNCTIONED. CDG - DURING CLIMB NR 2 ENGINE, S/N 4159, SPOOLED DOWN. SHUTDOWN ENGINE PER STANDARD PROCEDURES. FOUND ENGINE FUEL PUMP, MFG P/N 705301-32, MALFUNCTIONING. REPL
- [SDR 95ZZZX3402](https://openairdocs.org/sdr/95ZZZX3402), Jun 20, 1995: TUBE. LEAKING. LGW - FLT 721 - DURING CLIMB, SHUT DOWN NR 4 ENGINE, SN 4103, DUE TO OIL FILTER BYPASS LIGHT ILLUMINATING. FOUND OIL AND OIL FILTER HIGHLY CARBONATED. REPLACED 
- [SDR 95ZZZX2351](https://openairdocs.org/sdr/95ZZZX2351), Apr 27, 1995: FUEL PUMP. FAILED. LAX - FLT 841 - ON APPROACH, NR 1 ENGINE SHUT DOWN ON OWN ACCORD. REPLACED FUEL PUMP, MFG PN 373401-26 AND JFC, MFG PN 747999-5. OP CHECKS NORMAL. CHECK C-2 - 1
- [SDR 95ZZZX2354](https://openairdocs.org/sdr/95ZZZX2354), Apr 27, 1995: FUEL PUMP. FAILED. LAX - FLT 841 - DURING APPROACH, NR 1 ENGINE, SN 4162, SPUN DOWN. SHUT DOWN ENGINE. REPLACED NR 1 ENGINE FUEL PUMP, MFG PN 373401-26, AND FUEL CONTROL, MFG PN 7
- [SDR 95ZZZX2355](https://openairdocs.org/sdr/95ZZZX2355), Apr 27, 1995: FUEL CONTROL. FAILED. LAX - FLT 841 - DURING APPROACH, NR 1 ENGINE, SN 4162, SPUN DOWN. SHUT DOWN ENGINE. REPLACED NR 1 ENGINE FUEL PUMP, MFG PN 373401-26, AND FUEL CONTROL, MFG PN 7
- [SDR TWRA9516](https://openairdocs.org/sdr/TWRA9516), Mar 12, 1995: ENGINE. MALFUNCTIONED. ABORTED TAKEOFF DUE TO NR 2 ENGINE EXPERIENCED A DROP IN EPR AND N1 ALONG WITH A INCREASE IN EGT. FOLLOWING TROUBLESHOOTING, MAINTENANCE ELECTED TO FERRY AIRCRA

## STCs that may be installed (OpenAirDocs) (8)

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 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 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 SE1141CE](https://openairdocs.org/stc/SE1141CE): Removal of 15th stage bleeds and surge detector system. Trans World Airlines Inc

## 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
- [739951KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153223182920251125233836.0001): Nut Option. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 739951 · Feb 20, 2024
- [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
- [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
- [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
- [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
- [MK50476-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125003045020240703183001.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 641834 · Apr 1, 2020
- [H49040-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123386166820240703183016.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 678821 · Apr 1, 2020
- [MF29748-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118624175620240703182934.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 596295 · Apr 1, 2020
- [MF29122-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117317872320240703182955.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638676 · Apr 1, 2020

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

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