# Pratt & Whitney JT3D-1A-MC7 - Type: Engine model (FAA registry) - Registry code: 51684 - Manufacturer (registry): P & W - Model: JT3D-1A-MC7 - Engine type: Turbo-fan - Power: 17,700 lb thrust - Data sheet: [TCDS 1E8](https://openairdocs.org/tcds/1E8) (OpenAirDocs) - Holder: Pratt & Whitney Division - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-jt3d-1a-mc7 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 99-01-08](https://openairdocs.org/ad/99-01-08): Stage 7 through Stage 15 High-Pressure Compressor (HPC) Disks · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 30 more. Effective Jan 5, 1999 - [AD 96-23-10](https://openairdocs.org/ad/96-23-10): Steel High Pressure Compressor (HPC) disk · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 8 more. Effective Jan 21, 1997 - [AD 82-14-02](https://openairdocs.org/ad/82-14-02): Third Stage Turbine Disks · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 1, 1982 - [AD 80-12-51 R2](https://openairdocs.org/ad/80-12-51-R2): First Stage Fan Blade · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 1, 1980 - [AD 78-11-03](https://openairdocs.org/ad/78-11-03): First Stage Fan Blades · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Aug 10, 1978 - [AD 74-15-05](https://openairdocs.org/ad/74-15-05): Compressor Discs · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 25, 1974 - [AD 64-05-05](https://openairdocs.org/ad/64-05-05): Throttle Valve Assemblies · Pratt & Whitney Division JT3C-12, JT3C-7, JT3D-1 and 17 more. Effective Feb 27, 1964 - [AD 56-06-02](https://openairdocs.org/ad/56-06-02): Cylinder Flange Attaching Stud · Pratt & Whitney Division Double Wasp CA15, Double Wasp CA17, Double Wasp CA18 and 115 more ## 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) (2) 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 SE01110AT](https://openairdocs.org/stc/SE01110AT): Remove and replace JT3D main accessory gearbox housing split line gasket with PTM International gasket. Jet Avion Corporation. Lists JT3D Series - [STC SE1WE](https://openairdocs.org/stc/SE1WE): Valve assembly 126495. Limited to those engines having serial number suffix 'B'. Telecomputing Corp. Lists JT3D Series ## PMA parts (OpenAirDocs) (56, 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. - [468991WE](https://drs.faa.gov/browse/excelExternalWindow/54307786E4DF3D2586257CD700663B02.0001): Rivet, Blade. Wencor LLC · PMA PQ1370NM · Replaces 468991 · May 8, 2014 - [387316WE](https://drs.faa.gov/browse/excelExternalWindow/2347EFB2FC7D6D0986257CD700660818.0001): Rivet, Blade. Wencor LLC · PMA PQ1370NM · Replaces 387316 · May 8, 2014 - [P53684](https://drs.faa.gov/browse/excelExternalWindow/3B29DAF13B8411A586257BC7004C3B11.0001): Seal Assembly. Eaton Aerospace, Conveyance Systems Division Centurion Mechanical Seals · PMA PQ0558NE · Replaces 715603 · Aug 7, 2013 - [387316WE](https://drs.faa.gov/browse/excelExternalWindow/23BC05B77EB56EA5862576E40068E17D.0001): Rivet, Blade. Wencor LLC · PMA PQ1370NM · Replaces 387316 · Feb 2, 2010 - [SPS 54901-428 (SPS dwg. PMA-PWA-54901, rev. 0 dated 6/16/03)](https://drs.faa.gov/browse/excelExternalWindow/70C54C4571D96AD78525704C00570A0C.0001): Self-Locking Hex Nut. SPS Technologies Inc · Replaces P&W 386105 · Jul 6, 2003 - [NS203283-6-3](https://drs.faa.gov/browse/excelExternalWindow/4F8A872564A5C2FA8525704C00515F45.0001): NUT, S-L CLIP. SPS Technologies Inc · Replaces 641231 (5/26/95 Rev E) · Oct 7, 2002 - [KT218406](https://drs.faa.gov/browse/excelExternalWindow/ED4578BE9B6168518525704D0051E27D.0001): Seal. Turbine Kinetics Inc, Subsidiary of HEICO Corp · Replaces 218406 · Feb 19, 2001 - [GRF468991](https://drs.faa.gov/browse/excelExternalWindow/75038B3F96B49D8B852570420058F006.0001): Rivet. Genie Fastener Mfg Co · Replaces PWA468991 · Nov 18, 1999 - [GRF468990](https://drs.faa.gov/browse/excelExternalWindow/45F28D555E9A0CC4852570420058F005.0001): Rivet. Genie Fastener Mfg Co · Replaces PWA468990 · Nov 18, 1999 - [CR2249-6-4](https://drs.faa.gov/browse/excelExternalWindow/FC53A533B4F8E59D8525704D005056E8.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 704306 · Feb 5, 1998 - [R2643-6-9](https://drs.faa.gov/browse/excelExternalWindow/DE5033CF05C6FBFF8525704D00544DD5.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 575417 · Feb 5, 1998 - [2LSP-T6-4W](https://drs.faa.gov/browse/excelExternalWindow/CC900D77EEE207298525704C005B0DDE.0001): Pin-rivet. Textron Aerospace Fasteners · Replaces Pratt & Whitney 447193 · Feb 5, 1998 - [CR2563-5-3](https://drs.faa.gov/browse/excelExternalWindow/C5A31E9F5EF6ECE28525704D005056FB.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 432035 · Feb 5, 1998 - [CR2653-5-2](https://drs.faa.gov/browse/excelExternalWindow/B559FFA862A4BEA98525704D0050570C.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 534645 · Feb 5, 1998 - [2LS426-T6-4W](https://drs.faa.gov/browse/excelExternalWindow/A7B0513DF828B2438525704C005B0DDC.0001): Pin-rivet. Textron Aerospace Fasteners · Replaces Pratt & Whitney 447194 · Feb 5, 1998 - [CR2249-5-5](https://drs.faa.gov/browse/excelExternalWindow/8831B6F4EBBD6CCD8525704D005056E7.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 696073 · Feb 5, 1998 - [CR2249-6-9](https://drs.faa.gov/browse/excelExternalWindow/85F54D8156A008148525704D005056EA.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 704307 · Feb 5, 1998 - [CR863-4-6](https://drs.faa.gov/browse/excelExternalWindow/2DEACA030D59EAA68525704D0050576B.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 438600 · Feb 5, 1998 - [CR2249-6-5](https://drs.faa.gov/browse/excelExternalWindow/06727C6E01C847CB8525704D005056E9.0001): Rivet-blind. Textron Aerospace Fasteners · Replaces Pratt & Whitney 701977 · Feb 5, 1998 - [42285](https://drs.faa.gov/browse/excelExternalWindow/E59C8B6E9829F4758525704C005D114E.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 519481 · Jan 26, 1998 - [42286](https://drs.faa.gov/browse/excelExternalWindow/CE08A05934FA75018525704C005D114F.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 519489 · Jan 26, 1998 - [42289](https://drs.faa.gov/browse/excelExternalWindow/96050BA7B5DB63EA8525704C005D1151.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 519488 · Jan 26, 1998 - [40942](https://drs.faa.gov/browse/excelExternalWindow/9250E8CADC8221F28525704C005D1144.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 420993 · Jan 26, 1998 - [42284](https://drs.faa.gov/browse/excelExternalWindow/61226935782319EF8525704C005D114D.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 519485 · Jan 26, 1998 - [42287](https://drs.faa.gov/browse/excelExternalWindow/4BFDCC277A3319AF8525704C005D1150.0001): Cable (Lead, Ignition). Unison Industries · Replaces PWA 519487 · Jan 26, 1998 - [41540](https://drs.faa.gov/browse/excelExternalWindow/036ECCB7DC949C2D8525704C005D114A.0001): Exciter, Ignition. Unison Industries · Replaces PWA 477710 · Jan 26, 1998 - [PT100002](https://drs.faa.gov/browse/excelExternalWindow/ED29B22CB4D19D768525704B004F425E.0001): Gear Cover Seal. PTM International Inc · Replaces Pratt & Whitney 755125 · Aug 29, 1996 - [CR2249-6-4](https://drs.faa.gov/browse/excelExternalWindow/F33214A3A0FD49958525703E006FAE44.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 704306 · May 22, 1996 - [CR2249-5-5](https://drs.faa.gov/browse/excelExternalWindow/AB42ACC2CD01FE5F8525703E006FAE43.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 696073 · May 22, 1996 - [CR2249-6-9](https://drs.faa.gov/browse/excelExternalWindow/A08BD776DFC462CE8525703E006FAE46.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 704307 · May 22, 1996 - [2LSP-T6-4W](https://drs.faa.gov/browse/excelExternalWindow/9A1CB086742C5B0E8525703E006727DA.0001): Pin-rivet. Cherry Textron · Replaces Pratt & Whitney 447193 · May 22, 1996 - [CR2653-5-2](https://drs.faa.gov/browse/excelExternalWindow/722CA5A85C237FE08525703E006FAE68.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 534645 · May 22, 1996 - [CR2249-6-5](https://drs.faa.gov/browse/excelExternalWindow/65F2AB28A078EE028525703E006FAE45.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 701977 · May 22, 1996 - [R2643-6-9](https://drs.faa.gov/browse/excelExternalWindow/4F741E5D03C75A9F8525703F004DCF8F.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 575417 · May 22, 1996 - [2LS426-T6-4W](https://drs.faa.gov/browse/excelExternalWindow/31223237C7238EEF8525703E006727D8.0001): Pin-rivet. Cherry Textron · Replaces Pratt & Whitney 447194 · May 22, 1996 - [CR863-4-6](https://drs.faa.gov/browse/excelExternalWindow/196A546C1E77002C8525703E006FAEC6.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 438600 · May 22, 1996 - [CR2563-5-3](https://drs.faa.gov/browse/excelExternalWindow/15B55BB138D1821F8525703E006FAE57.0001): Rivet-blind. Cherry Textron · Replaces Pratt & Whitney 432035 · May 22, 1996 - [Turbo Power Parts List CPC Ref 84-032-1](https://drs.faa.gov/browse/excelExternalWindow/E755CACA9DC4B1CB8525704D0056231D.0001): IAW Turbo Power Parts List CPC Ref 84-032-1 dtd 5/25/84. Turbo Power & Marine Sys Inc · Replaces Replacement for original manufactured… · Jun 2, 1995 - [Turbo Power Parts Ltr](https://drs.faa.gov/browse/excelExternalWindow/C442C7D37E2A28B58525704D0056231E.0001): IAW Turbo Power Parts Ltr dtd 5/25/84 and attached Parts List. Turbo Power & Marine Sys Inc · Replaces Replacement for original manufactured… · Jun 2, 1995 - [TPM ltr and Computer Run](https://drs.faa.gov/browse/excelExternalWindow/7C5F4B3E5984FCD88525704D00562317.0001): IAW TPM ltr dtd 12/1/86 and Computer Run dtd 10/2/86 or later FAA approved revision. Turbo Power & Marine Sys Inc · Replaces Replacement of OEM parts · Jun 2, 1995 - [Turbo Power Parts List CPC Ref 84-032-1](https://drs.faa.gov/browse/excelExternalWindow/203AACE3557CCFA68525704D0056231C.0001): IAW Turbo Power Parts List CPC Ref 84-032-1 dtd 2/8/84. Turbo Power & Marine Sys Inc · Replaces Replacement for original manufactured… · Jun 2, 1995 - [Engine Parts Listed in MDL 2010](https://drs.faa.gov/browse/excelExternalWindow/F352D71A84DF269C8525704400589226.0001): Engine Parts Listed in MDL 2010 dtd 5/26/87. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [Engine Parts Listed in MDL 2008](https://drs.faa.gov/browse/excelExternalWindow/EC7AD89A40A8BB688525704400589224.0001): Engine Parts Listed in MDL 2008 dtd 3/28/87. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [Engine Parts Listed in MDL 2001](https://drs.faa.gov/browse/excelExternalWindow/D1BBEB9F9F62D936852570440058921D.0001): Engine Parts Listed in MDL 2001 dtd 7/17/86. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [Engine Parts Listed in MDL 2004](https://drs.faa.gov/browse/excelExternalWindow/A1CD95829726B9E18525704400589220.0001): Engine Parts Listed in MDL 2004 dtd 1/6/87. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [Engine Parts Listed in MDL 2012](https://drs.faa.gov/browse/excelExternalWindow/55E089F12147B0D08525704400589228.0001): Engine Parts Listed in MDL 2012 dtd 6/11/87. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [Engine Parts Listed in MDL 2002](https://drs.faa.gov/browse/excelExternalWindow/27FFF1E4704D770D852570440058921E.0001): Engine Parts Listed in MDL 2002 dtd 9/8/86. Huck International, Deutsch Operations · Modification part · Dec 28, 1994 - [AA72S-A](https://drs.faa.gov/browse/excelExternalWindow/84C77AFDD55C447B8525703E006A3178.0001): Igniter. Champion Aerospace LLC · Replaces P&W 487238 · Jun 26, 1988 - [P/N ASC246741](https://drs.faa.gov/browse/excelExternalWindow/2B285BD6BD715BC5862578F5004A994C.0001): Metal Seal Ring. Combustion Technologies · PMA PQ0885NE · May 23, 1988 - [EM399803](https://drs.faa.gov/browse/excelExternalWindow/C7323C93ECD2112B862574F0006C7B39.0001): Cover. Electro-Methods Inc · Aug 4, 1976 All of them: https://openairdocs.org/engine/pratt-whitney-jt3d-1a-mc7/pma.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.