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Type certificate E4EA

Held today by Pratt & Whitney Canada CORP., earlier by Pratt & Whitney Canada, Pratt & Whitney Aircraft of Canada\Pratt & Whitney Canada. It covers 54 models; about 4,740 aircraft on the U.S. register are built to the designs it names. Last revised June 16, 2021 (revision 30). 29 FAA orders name its designs, and 53 approved modifications build on it.

Models under this certificate 54

PT6A-35, PT6A-38, PT6A-20B, PT6A-21, PT6A-42, PT6A-29, PT6A-45B, PT6A-60AG, PT6A-6B, PT6A-6/C20, PT6A-36, PT6A-11AG, PT6A-60A, PT6A-45R, PT6A-121, PT6A-27, PT6A-41, PT6A-61, PT6A-65AG, PT6A-6, PT6A-110, PT6A-140, PT6B-9, PT6A-65B, PT6A-116, PT6A-34, PT6A-25, PT6D-114A, PT6A-34B, PT6A-65R, PT6A-135A, PT6A-42A, PT6A-41AG, PT6A-20A, PT6A-65AR, PT6A-45, PT6A-52, PT6A-34AG, PT6A-25A, PT6A-135, PT6A-25C, PT6A-112, PT6A-114, PT6A-28, PT6A-45A, PT6A-114A, PT6A-11, PT6A-50, PT6A-15AG, PT6A-6A, PT6A-20, PT6A-140A, PT6A-140AG, PT6A-65SC

Engine series

Pratt & Whitney Canada PT6A-11 5 aircraftPratt & Whitney Canada PT6A-112 20 aircraftPratt & Whitney Canada PT6A-114 10 aircraftPratt & Whitney Canada PT6A-114A 250 aircraftPratt & Whitney Canada PT6A-11AG 3 aircraftPratt & Whitney Canada PT6A-135 29 aircraftPratt & Whitney Canada PT6A-135A 161 aircraftPratt & Whitney Canada PT6A-140 238 aircraftPratt & Whitney Canada PT6A-140A 34 aircraftPratt & Whitney Canada PT6A-140AG 75 aircraftPratt & Whitney Canada PT6A-15AG 40 aircraftPratt & Whitney Canada PT6A-20 23 aircraftPratt & Whitney Canada PT6A-20A 2 aircraftPratt & Whitney Canada PT6A-21 78 aircraftPratt & Whitney Canada PT6A-25 4 aircraftPratt & Whitney Canada PT6A-25A 5 aircraftPratt & Whitney Canada PT6A-25C 8 aircraftPratt & Whitney Canada PT6A-27 31 aircraftPratt & Whitney Canada PT6A-28 13 aircraftPratt & Whitney Canada PT6A-34 234 aircraftPratt & Whitney Canada PT6A-34AG 272 aircraftPratt & Whitney Canada PT6A-35 7 aircraftPratt & Whitney Canada PT6A-36 4 aircraftPratt & Whitney Canada PT6A-41 84 aircraftPratt & Whitney Canada PT6A-41AG 1 aircraftPratt & Whitney Canada PT6A-42 172 aircraftPratt & Whitney Canada PT6A-42A 384 aircraftPratt & Whitney Canada PT6A-45 33 aircraftPratt & Whitney Canada PT6A-45R 7 aircraftPratt & Whitney Canada PT6A-50 1 aircraftPratt & Whitney Canada PT6A-52 266 aircraftPratt & Whitney Canada PT6A-6 1 aircraftPratt & Whitney Canada PT6A-60A 1,178 aircraftPratt & Whitney Canada PT6A-60AG 90 aircraftPratt & Whitney Canada PT6A-61 19 aircraftPratt & Whitney Canada PT6A-65AG 430 aircraftPratt & Whitney Canada PT6A-65AR 27 aircraftPratt & Whitney Canada PT6A-65B 77 aircraftPratt & Whitney Canada PT6A-65R 2 aircraftPratt & Whitney Canada PT6A-65SC 55 aircraftPratt & Whitney Canada PT6A series 181 aircraftPratt & Whitney Canada PT6B-37A 186 aircraft

The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.

FAA orders on these designs 29 · newest first

2022-05-272022-08-13 · Turbine Section · engine
2020-10-072020-18-05 · Fuel Control/Turbine Engines · engine
2019-12-242019-22-03 · Turbine Engine Reduction Gear · engine
2016-04-222016-05-13 · Corrosion and perforation of the two-ply Cu-Be bellows in Woodward FCUs. · engine
2015-11-182015-20-04 · Reduction gearbox (RGB) assembly · engine
2015-06-052014-17-08R1 · Compressor turbine (CT) blades · engine
2014-10-082014-17-08 · Compressor turbine (CT) blades · engine
2014-08-052014-11-05 · Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings,... · engine

Approved modifications 53 · companies holding the most

More Company INC 8Airwork Corporation 6Airforce Turbine Service 6Aviall of Texas, INC 3Vector Aerospace Engine Services Atlantic INC. 2Standard Aero Limited 2Pratt & Whitney Engine Services INC. 2More Company, INC. 2

Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of November 3, 2026. Connections as data: /graph/certificate/E4EA.json.