# Pratt & Whitney PW4074D - Type: Engine model (FAA registry) - Registry code: 51534 - Manufacturer (registry): P & W - Model: PW4074D - Engine type: Turbo-fan - Power: 77,440 lb thrust - Data sheet: [TCDS E46NE](https://openairdocs.org/tcds/E46NE) (OpenAirDocs) - Holder: Pratt & Whitney RTX Corporation (formerly United Technologies Corporation) - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-pw4074d 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 2026-17-08](https://openairdocs.org/ad/2026-17-08): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074D, PW4077D, PW4084D and 2 more. Effective Oct 8, 2026 - [AD 2026-09-02](https://openairdocs.org/ad/2026-09-02): Turbine Engine Compressor Section · Pratt & Whitney RTX PW4074, PW4074D, PW4077 and 4 more. Effective Jun 26, 2026 - [AD 2023-22-02](https://openairdocs.org/ad/2023-22-02): Turbine Engine Combustion Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Dec 26, 2023 - [AD 2023-19-02](https://openairdocs.org/ad/2023-19-02): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Nov 7, 2023 - [AD 2022-07-13](https://openairdocs.org/ad/2022-07-13): Engine Oil Cooler · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective May 2, 2022 - [AD 2022-06-09](https://openairdocs.org/ad/2022-06-09): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Apr 15, 2022 - [AD 2017-05-05](https://openairdocs.org/ad/2017-05-05): Failure of the HPT 1st stage hub · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Apr 13, 2017 - [AD 2014-23-01](https://openairdocs.org/ad/2014-23-01): Second-stage HPT air seal · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Dec 26, 2014 - [AD 2010-24-09](https://openairdocs.org/ad/2010-24-09): No. 3 bearing oil pressure tubes · Pratt & Whitney Division PW4050, PW4052, PW4056 and 34 more. Effective Dec 28, 2010 - [AD 2006-22-13](https://openairdocs.org/ad/2006-22-13): Anti-rotation slots · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 5 more. Effective Dec 7, 2006 - [AD 2005-25-09](https://openairdocs.org/ad/2005-25-09): Engine manufacturer's time limits section (TLS) · Pratt & Whitney Division PW4050, PW4052, PW4056 and 26 more. Effective Jun 12, 2006 - [AD 2003-26-09](https://openairdocs.org/ad/2003-26-09): Engine High Pressure Turbine (HPT) Assembly Hardware · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Dec 3, 2003 - [AD 2003-13-11](https://openairdocs.org/ad/2003-13-11): High Pressure Compressor (HPC) Rear Case J Flange · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 3 more. Effective Jul 15, 2003 - [AD 2002-09-01](https://openairdocs.org/ad/2002-09-01): 15th Stage High Pressure Compressor (HPC) Disk · Pratt & Whitney Division PW4074D, PW4077D, PW4090 and 3 more. Effective Jun 6, 2002 - [AD 2001-20-02](https://openairdocs.org/ad/2001-20-02): 2nd Stage High Pressure Turbine Air Seal Assembly · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Nov 5, 2001 Historical (superseded or no longer in force): - [AD 2021-05-51](https://openairdocs.org/ad/2021-05-51) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Mar 24, 2021 - [AD 2019-03-01](https://openairdocs.org/ad/2019-03-01) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Mar 22, 2019 - [AD 2018-21-11](https://openairdocs.org/ad/2018-21-11) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074D, PW4077D, PW4084D and 2 more. Effective Dec 5, 2018 - [AD 2018-02-10](https://openairdocs.org/ad/2018-02-10) (historical): Turbine Engine Combustion Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Feb 26, 2018 - [AD 2013-15-09](https://openairdocs.org/ad/2013-15-09) (historical): HPT air seals · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Sep 17, 2013 - [AD 2003-22-09](https://openairdocs.org/ad/2003-22-09) (historical): Turbine exhaust case (TEC) · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Dec 3, 2003 - [AD 2002-03-08](https://openairdocs.org/ad/2002-03-08) (historical): Time Limits Section of Engine Manuals (EM's) · Pratt & Whitney Division PW4050, PW4052, PW4056 and 25 more. Effective Apr 16, 2002 - [AD 2000-12-02](https://openairdocs.org/ad/2000-12-02) (historical): Critical Life-Limited Part · Pratt & Whitney Division PW4050, PW4052, PW4056 and 24 more. Effective Sep 13, 2000 - [AD 99-08-15](https://openairdocs.org/ad/99-08-15) (historical): Pratt & Whitney Division PW4050, PW4052, PW4056 and 20 more. Effective May 13, 1999 ## Information bulletins (advisory) (3) - [SAIB NE-16-01R1](https://openairdocs.org/saib/NE-16-01R1): Turbine Section. Issued Jan 14, 2016 - [SAIB NE-16-01](https://openairdocs.org/saib/NE-16-01) (historical): Turbine Section. Issued Oct 5, 2015 - [SAIB NE-13-31](https://openairdocs.org/saib/NE-13-31): Turbine Engine Oil System Scavenge Oil Tube Coking and Proper Cleaning at Overhaul. Issued May 9, 2013 ## 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 SE00053AT-D](https://openairdocs.org/stc/SE00053AT-D): Modification of fan exit guide vane, to line replaceable unit configuration. Chromalloy Gas Turbine Corp ## 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. - [51R063KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190009176520260227180052.0001): Valve-Oil Tank Filler Neck. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 51R063 · Feb 26, 2026 - [ST1946-042JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199874545920250904133405.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-042 · Aug 20, 2025 - [ST1946-130JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194003786420250904133408.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-130 · Aug 20, 2025 - [ST1946-127JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172412663420250904133408.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-127 · Aug 20, 2025 - [ST1946-239JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163101431520250904133414.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-239 · Aug 20, 2025 - [ST1946-160JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153276390320250904133411.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-160 · Aug 20, 2025 - [ST1946-122JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131325496120250904133407.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-122 · Aug 20, 2025 - [ST1946-155JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131223075820250904133410.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-155 · Aug 20, 2025 - [ST1946-223JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123845374720250904133413.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-223 · Aug 20, 2025 - [ST1946-159JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112943330420250904133410.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-159 · Aug 20, 2025 - [ST1258-12WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175514152020250716181505.0001): Nut - SLFLKG, DH. Wencor, LLC · PMA PQ1370NM · Replaces ST1258-12 · Jun 26, 2025 - [WF337075](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124632316520250602133036.0001): Dual Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 52R027, ACC434F65, Alternate: 815316… · May 23, 2025 - [38451-1018UA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191870410820250724145846.0001): Seal. PMA Design & Manufacturing · PMA PQ1570CE · Replaces 38451-1018 · Jan 17, 2025 - [38451-1020UA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148711589220250724145846.0001): Seal. PMA Design & Manufacturing · PMA PQ1570CE · Replaces 38451-1020 · Jan 17, 2025 - [38451-1019UA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146158937820250724145846.0001): Seal. PMA Design & Manufacturing · PMA PQ1570CE · Replaces 38451-1019 · Jan 17, 2025 - [26124-0204UA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130649172420250724145845.0001): Seal. PMA Design & Manufacturing · PMA PQ1570CE · Replaces 26124-0204 · Jan 17, 2025 - [51H518WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180734457420250210181218.0001): Tierod. Wencor, LLC · PMA PQ1370NM · Replaces 51H518 · Jan 9, 2025 - [7588990WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154062697020250210181220.0001): Element, Filter. Wencor, LLC · PMA PQ1370NM · Replaces 7588990 · Jan 9, 2025 - [51H518WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140805946120250210181220.0001): Tierod. Wencor, LLC · PMA PQ1370NM · Replaces 50H049 · Jan 9, 2025 - [51H518WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127560713020250210181219.0001): Tierod. Wencor, LLC · PMA PQ1370NM · Replaces 50H048 · Jan 9, 2025 - [776440WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122636287420250210181220.0001): Nut, Self Locking. Wencor, LLC · PMA PQ1370NM · Replaces 776440 · Jan 9, 2025 - [776441WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106258278620250210181220.0001): Nut, Double-Hex. Wencor, LLC · PMA PQ1370NM · Replaces 776441 · Jan 9, 2025 - [E56H710-03](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174707632220260305211415.0001): Blade – HPC, 10 STG. Extex Engineered Products Inc. · PMA PQ2203NM · Replaces 56H710-03 · Oct 28, 2024 - [EST1559](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153816190420260305201734.0001): Pin-Rivet-Threaded .250-28, Flat. Extex Engineered Products Inc. · PMA PQ2203NM · Replaces ST1559 · Oct 28, 2024 - [E56H710-02](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139623293820260305211415.0001): Blade – HPC, 10 STG. Extex Engineered Products Inc. · PMA PQ2203NM · Replaces 56H710-02 · Oct 28, 2024 - [E56H710-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133799212620260305211415.0001): Blade – HPC, 10 STG. Extex Engineered Products Inc. · PMA PQ2203NM · Replaces 56H710-01 · Oct 28, 2024 - [E56H710-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102794255120260305211415.0001): Blade – HPC, 10 STG. Extex Engineered Products Inc. · PMA PQ2203NM · Replaces 56H710-04 · Oct 28, 2024 - [70R154KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177743658320260106172634.0001): Housing-Face Seal. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 70R154 · Jul 22, 2024 - [71R157KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154749253020260106172635.0001): Seal-Face. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 71R157 · Jul 22, 2024 - [71R158KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143397953420260106172634.0001): Seal Aay-Face. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 71R158 · Jul 22, 2024 - [70R156KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140619294020260106172635.0001): Washer-Spring Tension. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 70R156 · Jul 22, 2024 - [70R503KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131165938020260106172636.0001): Ring-Ring. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 70R503 · Jul 22, 2024 - [70R157KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115240348520260106172635.0001): Washer-Flat. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 70R157 · Jul 22, 2024 - [70R563KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110612046420260106172635.0001): Packing-Preformed. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 70R563 · Jul 22, 2024 - [ST1946JP-388](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195585186120240531131659.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-388 · Apr 29, 2024 - [ST1946JP-217](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188967678520240531131659.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-217 · Apr 29, 2024 - [ST1946JP-239](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184674933820240531131659.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-239 · Apr 29, 2024 - [ST1946JP-010](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151377380520240531131657.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-010 · Apr 29, 2024 - [ST1946JP-902](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150483986520240531131659.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-902 · Apr 29, 2024 - [ST1946JP-906](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113671100420240531131659.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-906 · Apr 29, 2024 - [ST1946JP-214](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107657480820240531131658.0001): Packing. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces ST1946-214 · Apr 29, 2024 - [E56H710-02](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196483843920240509162334.0001): Blade– HPC 10 Stg. Extex Engineered Products Inc · PMA PQ2203NM · Replaces 56H710-02 · Apr 4, 2024 - [E56H710-03](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181935097820240509162334.0001): Blade– HPC 10 Stg. Extex Engineered Products Inc · PMA PQ2203NM · Replaces 56H710-03 · Apr 4, 2024 - [E56H710-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176150433220240509162334.0001): Blade– HPC 10 Stg. Extex Engineered Products Inc · PMA PQ2203NM · Replaces 56H710-04 · Apr 4, 2024 - [E56H710-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134667678820240509162334.0001): Blade– HPC 10 Stg. Extex Engineered Products Inc · PMA PQ2203NM · Replaces 56H710-01 · Apr 4, 2024 - [ST1146-08WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171606653720240919140211.0001): Gasket. Wencor, LLC · PMA PQ1370NM · Replaces ST1146-08 · Mar 28, 2024 - [ST1946-013JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199158696620231026161747.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-013 · Oct 18, 2023 - [ST1946-117JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198262155020231026161750.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-117 · Oct 18, 2023 - [ST1946-010JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191875775620231026161745.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-010 · Oct 18, 2023 - [ST1946-213JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181961770220231026161751.0001): Packing-Preform. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces ST1946-213 · Oct 18, 2023 All of them: https://openairdocs.org/engine/pratt-whitney-pw4074d/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.