The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 5

STC Holder: Standard Aero Limited 33 Allen Dyne Road, Winnipeg, Manitoba, R3H 1A1, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE00691NY	Status: Current	App Date:	Rev Date: 10/07/1997
Description: Conversion of engine models PT6A-27 and -28 to Model PT6A-34 as described in Temporary Overhaul Data Revision.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-27, PT6A-28, PT6A-34
ACO: AIR-750: East Certification Branch NY

STC Holder: Standard Aero Limited 33 Allen Dyne Road, Winnipeg, Manitoba, R3H 1A1, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE00856NY	Status: Current	App Date:	Rev Date: 06/22/1998
Description: Conversion of PT6A-41 engine model to PT6A-42 engine model.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-41
ACO: AIR-750: East Certification Branch NY

STC Holder: Standard Aero Limited 33 Allen Dyne Road, Winnipeg, Manitoba, R3H 1A1, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE02688NY	Status: Current	App Date: 03/16/2009	Rev Date: 06/24/2009
Description: This modification would incorporate improved compressor components into the Pratt & Whitney PT6A-28 engine from the PT6A-135A engine.
TC Nos.: E2NE
Models: Pratt & Whitney DivisionPT6A-28
ACO: AIR-750: East Certification Branch NY

STC Holder: Standard Aero Limited 707 Flight Road, Winnipeg, Manitoba R3H 1C6		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00218IB	Status: Historical	App Date: 04/19/2024	Rev Date: 09/10/2024
Description: Installation of the Cockpit Door
TC Nos.: 1H15
Models: Sikorsky AircraftS-61L, S-61N
ACO: AIR-730: International Validation Branch

STC Holder: Standard Aero Limited 707 Flight Road, Winnipeg, Manitoba, R3H 1C6		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00220IB	Status: Historical	App Date: 04/19/2024	Rev Date: 09/17/2024
Description: Installation of Replacement Avionics Shelves
TC Nos.: 1H15
Models: Sikorsky AircraftS-61L, S-61N
ACO: AIR-730: International Validation Branch