Aircraft STC directory

Pratt & Whitney Canada PT6A-25C STCs

The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Pratt & Whitney Canada PT6A-25C. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

listed Current at snapshot

holder directories

modification categories

Oct 4, 2022

latest recorded revision

Modification demand surface

Engine and powerplant4

Fuel systems1

Recorded holders

MORE Company Inc2 Pratt & Whitney Engine Services Inc.2 Atlantic Turbines International Inc.1

Recently revised PT6A-25C STCs

Showing the 5 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SE000011ENEngine and powerplantRevised Oct 4, 2022

Instructions for Continued Airworthiness for the PT6A-25C engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals.

FAA holder: MORE Company, Inc.

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SE00011ENEngine and powerplantRevised Oct 4, 2022

Instructions for Continued Airworthiness for the PT6A-25C engine model that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals.

FAA holder: MORE Company Inc

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SE00014ENEngine and powerplantRevised Oct 22, 2007

Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.

FAA holder: Pratt & Whitney Engine Services Inc.

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SE00020ENEngine and powerplantRevised Oct 22, 2007

Installation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1.

FAA holder: Pratt & Whitney Engine Services Inc.

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SE01805NYFuel systemsRevised Feb 14, 2005

Installation of Fuel Nozzle Adapters using studs and nuts.

FAA holder: Atlantic Turbines International Inc.

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