# Pratt & Whitney JT9D-7R4E4

- Type: Engine model (FAA registry)
- Registry code: 51559
- Manufacturer (registry): P & W
- Model: JT9D-7R4E4
- Engine type: Turbo-fan
- Power: 50,000 lb thrust
- Data sheet: [TCDS E3NE](https://openairdocs.org/tcds/E3NE) (OpenAirDocs)
- Holder: Pratt & Whitney
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-jt9d-7r4e4

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 2009-10-01](https://openairdocs.org/ad/2009-10-01): High-pressure turbine (HPT) vane assemblies · Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and 1 more. Effective May 18, 2009
- [AD 2007-18-06](https://openairdocs.org/ad/2007-18-06): Inspection of the blade root thickness · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 5, 2007
- [AD 2004-01-08](https://openairdocs.org/ad/2004-01-08): One-piece fan case shield · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 10, 2004
- [AD 2002-07-04](https://openairdocs.org/ad/2002-07-04): Low Pressure Turbine (LPT) 5th Stage Disks · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective May 14, 2002
- [AD 2001-17-30](https://openairdocs.org/ad/2001-17-30): High Pressure Turbine 1st Stage Disk Aft Lugs · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 4, 2001
- [AD 98-21-22 R1](https://openairdocs.org/ad/98-21-22-R1): High Pressure Compressor Disks · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 8 more. Effective Jan 18, 2000
- [AD 99-20-04](https://openairdocs.org/ad/99-20-04): High Pressure Turbine Disks · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 29, 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 96-17-11](https://openairdocs.org/ad/96-17-11): Low pressure turbine (LPT) vane · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Nov 18, 1996
- [AD 94-08-06](https://openairdocs.org/ad/94-08-06): Fan Blade · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Jul 5, 1994
- [AD 91-03-03](https://openairdocs.org/ad/91-03-03): High Pressure Compressor Turbine Driveshaft · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 22, 1991
- [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 87-23-05 R1](https://openairdocs.org/ad/87-23-05-R1): Fan Case Assembly · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Mar 23, 1990
- [AD 86-25-51](https://openairdocs.org/ad/86-25-51): Low Altitude Surges · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 3 more. Effective Mar 20, 1987
- [AD 86-03-03](https://openairdocs.org/ad/86-03-03): Fuel Nozzle Flow And Spray Cone Angle · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4E and JT9D-7R4E4. Effective Mar 14, 1986
- [AD 83-22-52 R1](https://openairdocs.org/ad/83-22-52-R1): Refurbishing Fuel Nozzles · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 21, 1984
- [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 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

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 2007-17-21](https://openairdocs.org/ad/2007-17-21) (historical): High pressure turbine (HPT) vane assemblies · Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and 1 more. Effective Sep 28, 2007
- [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 2005-26-09](https://openairdocs.org/ad/2005-26-09) (historical): 1st stage fan blades. · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Jan 11, 2006
- [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

## 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.

## STCs that may be installed (OpenAirDocs) (1)

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 SE00054AT-D](https://openairdocs.org/stc/SE00054AT-D): Modification of the turbine exhaust case to provide increased wall thickness for the purpose of improved blade containment. Aero Component Technologies

## 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
- [AA134S-1KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184879292020230503123547.0001): Igniter Plug. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces AA134S-1 · Apr 27, 2023
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149540485520240306163131.0001): Bleed Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 728244 · Apr 7, 2023
- [941V0500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142722605820240306163131.0001): Air Shut Off Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 796641 · 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
- [941V0500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109278233520231218190433.0001): Air Shut Off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 796641 · Apr 7, 2023
- [1011V0400](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115703959220230914150543.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 792396 · Apr 5, 2023
- [1011V0400-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111683462420230914150542.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 806273 Rev. Original (11-9-90) · Apr 5, 2023
- [1011V0400-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108147711720230914150544.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 792396 · Apr 5, 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
- [1011V0400-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164641560420230914183241.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 801443 Rev. A (8-17-90) · Mar 29, 2023
- [666V100-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129402277020230914183240.0001): Fuel Check Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 803669 Rev. Original (3-28-89) · Mar 29, 2023
- [ST1946-163SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157259267720220608164142.0001): Packing-Preformed. Seal Dynamics Inc · PMA PQ1715CE · Replaces ST1946-163 · Apr 28, 2022
- [10-614960-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID843352222920210921141218.0001): Stator- -EEC. Honeywell International Inc. Honeywell Aerospace · PMA PQ1222NM · Replaces 783643 · Apr 21, 2021
- [10-614965-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID739545970620210921141219.0001): Rotor-EEC. Honeywell International Inc. Honeywell Aerospace · PMA PQ1222NM · Replaces 781997 · Apr 21, 2021
- [10-614965-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID532863254720210921141546.0001): Rotor - EEC
Generator. Honeywell International Inc. Honeywell Aerospace · PMA PQ1222NM · Replaces 781997 · Apr 21, 2021
- [10-614960-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100089221820210921141545.0001): Stator - EEC Generator. Honeywell International Inc. Honeywell Aerospace · PMA PQ1222NM · Replaces 783643 · Apr 21, 2021
- [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
- [DEC31- 174-503](https://drs.faa.gov/browse/excelExternalWindow/7DDA9A623D214FAF86258629005AC789.0001): Shaft Assembly, Flexible. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 121746-2 · Nov 16, 2020
- [DEC01- 056-527](https://drs.faa.gov/browse/excelExternalWindow/54EE811A2D8363BE86258629005AC230.0001): Gasket - .093 Free Height. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces ST1111-27 ST1121-27 ST1141-27 · Nov 16, 2020
- [M5001518-01](https://drs.faa.gov/browse/excelExternalWindow/E63F78CEE74AAE3086258601005A4B50.0001): Shoulder Pin. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 5001518-01 · Oct 7, 2020
- [M770354](https://drs.faa.gov/browse/excelExternalWindow/5BFC3294592D814B862585E4003A0124.0001): Spacer-#1&2 Bearing. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 770354 · Sep 9, 2020
- [M5005438-01](https://drs.faa.gov/browse/excelExternalWindow/9BE41C959A160DC2862585E4003A1D51.0001): Stop- Instrumentation Plug. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 5005438-01 · Sep 8, 2020
- [H49513-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199865578120240703183103.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces ST2119-10 · Apr 1, 2020
- [K29109-5-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199222314220240703182956.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638834 · Apr 1, 2020
- [MK50476-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196841897320240703183001.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 641834 · Apr 1, 2020
- [H29117-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194053167920240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 662141 · Apr 1, 2020
- [K39255-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193201026820240703183043.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 753970 · Apr 1, 2020
- [H29118-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192129229120240703182937.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618097 · Apr 1, 2020
- [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191799248720240703182941.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020
- [H50361-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189842981620240703183046.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 760552 · Apr 1, 2020
- [K1000X4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188589440020240703183043.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 753965 · Apr 1, 2020
- [K52341-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186716157020240703183050.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 798643 · Apr 1, 2020
- [F39244-3BC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183518510320240703183036.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 746922 · Apr 1, 2020
- [H29220-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181296887920240703182959.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639299 · Apr 1, 2020
- [H29011-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179081188420240703183101.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces ST2117-12 · Apr 1, 2020
- [H29605-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178996417420240703183009.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 649734 · Apr 1, 2020
- [F5031-3BCPW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174223066620240703183026.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 714847 · Apr 1, 2020
- [CN39971-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173827076120240703183014.0001): Nut, gangchannel,S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677824 · Apr 1, 2020
- [MF39839-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172863478620240703183032.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 743080 · Apr 1, 2020
- [K29109-4-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171047886120240703182951.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638671 · Apr 1, 2020
- [MF49663-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168864943220240703183015.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677828 · Apr 1, 2020
- [MF29748-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168182111020240703182934.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 596295 · Apr 1, 2020
- [K39085-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165068875520240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 650410 · Apr 1, 2020
- [H49513-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164735282820240703183103.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces ST2119-09 · Apr 1, 2020
- [H51695-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161174654520240703183049.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 787454 · Apr 1, 2020
- [MK1000X4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154056867920240703182919.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 410191 · Apr 1, 2020
- [MK1031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152243115020240703183022.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707842 · Apr 1, 2020
- [H29112-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151789073520240703182938.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618103 · Apr 1, 2020
- [F2000-5PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150087570720240703182928.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 523105 · Apr 1, 2020

All of them: https://openairdocs.org/engine/pratt-whitney-jt9d-7r4e4/pma.md

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