The Aviation DataBase®
Complete Aviation Regulatory Library
Sept. 11 Sept. 11
DataBases updated: Jan 9th, 2026
Home Products Library Support Account Login Contact

STC Holder: ET Engines and Aircraft Services, Inc

The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 4

STC Holder:
ET Engines and Aircraft Services, Inc
1901 E 51st St. Hangar 3, Austin, TX 78723, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4550SWStatus: HistoricalApp Date: Rev Date: 07/25/1986
Description: Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines.
TC Nos.: A14CE
Models:
Raytheon Aircraft Company99
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
STC Holder:
ET Engines and Aircraft Services, Inc
1901 E 51st St. Hangar 3, Austin, TX 78723, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4705SWStatus: HistoricalApp Date: Rev Date: 06/13/1985
Description: Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines.
TC Nos.: 3A20
Models:
Raytheon Aircraft Company65-A90, C90
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
STC Holder:
ET Engines and Aircraft Services, Inc
1901 E 51st St. Hangar 3, Austin, TX 78723, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5460SWStatus: HistoricalApp Date: Rev Date: 07/25/1986
Description: Install Pratt & Whitney PT6A-21engines in place of PT6A-20A engines
TC Nos.: 3A20
Models:
Raytheon Aircraft CompanyC90
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
STC Holder:
ET Engines and Aircraft Services, Inc
1901 E 51st St. Hangar 3, Austin, TX 78723, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5461SWStatus: CurrentApp Date: 05/29/1983Rev Date: 07/25/1986
Description: Installation of auxiliary engine-driven fuel pump.
TC Nos.: 3A20
Models:
Beechcraft CorporationC90
ACO: AIR-760: Central Certification Branch FTW