# Pratt & Whitney A-1 series

- Type: Engine model (FAA registry)
- Registry code: 52075
- Manufacturer (registry): P & W
- Model: A-1
- Engine type: Reciprocating
- Power: 525 hp
- Data sheet: [TCDS E-241](https://openairdocs.org/tcds/E-241) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 1 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-a-1-series

The registry names only the engine series, so ADs for every model in the series are matched.

## 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 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 81-07-06](https://openairdocs.org/ad/81-07-06): AC Fuel Pumps · Continental Motors A-65-1, A-65-12, A-65-12F and 60 more. Effective Apr 1, 1981

## Information bulletins (advisory) (2)

- [SAIB NE-16-13](https://openairdocs.org/saib/NE-16-13): Powerplant - Prohibited use of sealant. Issued Mar 8, 2016
- [SAIB NE-13-04](https://openairdocs.org/saib/NE-13-04): Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection. Issued Oct 31, 2012

## Registered aircraft (1)

- [N62469](https://openairdocs.org/aircraft/N62469): [Northern Waters LLC](https://openairdocs.org/faa-owner/NORTHERN%20WATERS%20LLC), [Livingston, MT](https://openairdocs.org/faa-place/MT/Livingston), built 1958, S/N 1237

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19930501016269I](https://openairdocs.org/incident/19930501016269I), May 1, 1993: Dhav DHC2MK1 (N62469), Valdez, AK, Minor damage. Left main gear on amphibius wheel float plane collpased on rollout. Left actuator had corroded at attachment hole.

## 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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC. Lists A100-1
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc. Lists A100-1
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists A100-1
- [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc. Lists A100-1
- [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA. Lists A100-1
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists A100-1
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists A100-1
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists A100-1
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists A100-1
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists A100-1

## 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.

- [72-231114-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147038740720260722204348.0001): TAG-Engine. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 17, 2026
- [ES917](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192492107120251216184202.0001): Impulse Coupling Spring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M917 · May 20, 2024
- [AM-3217](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190801817120251216184156.0001): Wave Spring Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M-3217 · May 20, 2024
- [AM3611](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190443277420251216184158.0001): Cam. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3611, M1522 · May 20, 2024
- [AM-3015](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190038963420251216184149.0001): Screw, Housing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3015 · May 20, 2024
- [AM-3215](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186810273420251216184147.0001): Brush Assy, Distributor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3215 · May 20, 2024
- [AK-3975](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182506865320251216184200.0001): Coil, Ignition. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3009, M3114, M3525, K3975, K3975 · May 20, 2024
- [AM-3020](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175941851820251216184145.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3020 · May 20, 2024
- [ES3084](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171307156420251216184211.0001): Air Vent With Hood. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3084 · May 20, 2024
- [ES3496](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165485294620251216184227.0001): Machining, Rotating Magnet. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3496 · May 20, 2024
- [AM-2556](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163056043620251216184154.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2556 · May 20, 2024
- [ES3018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159518890720251216184203.0001): Clamp, Bearing Cap. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3018 · May 20, 2024
- [AM-3021](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155587978420251216184143.0001): Screw Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3021 · May 20, 2024
- [AM-3485](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151658177120251216184155.0001): Bearing Cap, Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3485 · May 20, 2024
- [AM-3006](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146130218820251216184150.0001): Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3006 · May 20, 2024
- [ES3590](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144243510220251216184218.0001): Impulse Coupling Assy.. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3590 · May 20, 2024
- [ES3221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141393701020251216184227.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3221 · May 20, 2024
- [ES3828](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139833534820251216184220.0001): Rotor Gear. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3828 · May 20, 2024
- [AM2536](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136517725820251216184151.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2536 · May 20, 2024
- [A-13081K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133214336820251216184146.0001): Contact Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3081 · May 20, 2024
- [AM-3062](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128762119920251216184153.0001): Oil Seal. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3062 · May 20, 2024
- [ES3040](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128685841620251216184204.0001): Coil Wedge. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3040 · May 20, 2024
- [AK-3984](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123559578320251216184159.0001): Capacitor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3183, K3984 · May 20, 2024
- [ES3823](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116582067520251216184219.0001): Dist. Block & Gear Assy.. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3823 · May 20, 2024
- [ES3826](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114076128220251216184206.0001): Spacer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3826 · May 20, 2024
- [ES1077](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110334972620251216184212.0001): Air Vent. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M1077 · May 20, 2024
- [ES10-400551-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182589540620240301172652.0001): Housing, Distributor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400551-7 · Dec 1, 2023
- [ES10-357165-20](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181231184420240301172637.0001): Coil, Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-357165-20, 10-357164-1 · Dec 1, 2023
- [ES10-400549-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168791928620240301172656.0001): 200 Series Frame, Lyc Flange. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400549-1 · Dec 1, 2023
- [ES10-56513](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161629933220240301172644.0001): Pin, Stop. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-56513 · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157224145020240301172647.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [ES10-52947](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140908698020240301172620.0001): Magnet Rotating (Rotor). Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-52947 · Dec 1, 2023
- [ES10‐3503](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182314138120240301172653.0001): Washer, Plain. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-3503 · Nov 9, 2023
- [ES10‐682025](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159888329220240301172656.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-682025 · Nov 9, 2023
- [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143910433620231109131600.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023
- [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107190435020231109131559.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023
- [ES10-400549-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190162904720230929175028.0001): 200 Series Frame, Lyc Flange. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400549-1 · Jul 17, 2023
- [ES10-400551-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198440913720231025135100.0001): Housing, Distributor. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400551-7 · Apr 1, 2023
- [ES10-25788](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165102956920230703154005.0001): Bearing, Sleeve. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357078, 10-25788, 736 · Mar 20, 2023
- [ES10-56513](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151281833120230502200201.0001): Pin, Stop. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-56513 · Feb 9, 2023
- [ES10-357165-20](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103896908520220725141429.0001): Coil, Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357165-20, 10-357164-1 · Jun 9, 2022
- [ES10-52947](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID761959610820210611134657.0001): Magnet, Rotating (Rotor). Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces Continental Motors 10-52947 · Mar 1, 2021
- [2209-1.31](https://drs.faa.gov/browse/excelExternalWindow/F98E95A3AA5DC1D68625854D0047577F.0001): Stud, 5/16-18 x 5/16-24, 1-5/16 Long. Ram Aircraft Limited Partnership · PMA PQ0399SW · Replaces 401885, 7403067 · May 7, 2019
- [2209-1.31](https://drs.faa.gov/browse/excelExternalWindow/E92C9D38FF45371C8625847400612903.0001): Stud, 5/16-18 x 5/16-24, 1-5/16 Long. Ram Aircraft Limited Partnership · PMA PQ0399SW · Replaces 401885 7403067 · May 7, 2019
- [AEC21153](https://drs.faa.gov/browse/excelExternalWindow/F443AC4CCD4337C68625753C00782262.0001): Shaft, Valve Rocker. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 21153 · Oct 17, 2006
- [AEC531001](https://drs.faa.gov/browse/excelExternalWindow/F1689993B45D9EDD8625753C00782C25.0001): Nut, 7/16-20 UNF, Flanged. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 22242, 531001 · Oct 17, 2006
- [AEC21284 (and oversizes up to .005)](https://drs.faa.gov/browse/excelExternalWindow/EBF704F65D7E19048625753C007822A5.0001): Housing, Pushrod. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 21284 · Oct 17, 2006
- [AEC520112-1, AEC520112-2](https://drs.faa.gov/browse/excelExternalWindow/A06F52E5E44F46D08625753C00782A16.0001): Insert, Helical Coil, Spark Plug, 18-1.5 mm. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 520112 · Oct 17, 2006
- [AEC21007](https://drs.faa.gov/browse/excelExternalWindow/71EE4DA66A5972908625753C00782230.0001): Plug, Valve Rocker. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 21007 · Oct 17, 2006
- [AEC21477](https://drs.faa.gov/browse/excelExternalWindow/527BD21242EF02508625753C00782314.0001): Packing, Cylinder Base. Airmotive Engineering Corp · PMA PQ0003SW · Replaces 21477 · Oct 17, 2006

All of them: https://openairdocs.org/engine/pratt-whitney-a-1-series/pma.md

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