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: 4

STC Holder: Johnston Aircraft Service P.O. Box 757 Tulare Airpark, Tulare, CA 93274, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2188WE	Status: Current	App Date:	Rev Date: 07/09/1970
Description: Installation of JAS No. 1 moveable canopy on 75 series aircraft modified by FAA approved hopper installation in lieu of front seat and with Pratt & Whitney R-985 engine installed.
TC Nos.: A-743
Models: Boeing Airplane Company Wichita Division75 (Army PT-13), A75 Series, A75J1 (Army PT-18), A75L3, A75N1 Series, B75 (Navy N2S-5), B75N1 (Navy N2S-3), D75N1 (Army PT-27), E75 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Johnston Aircraft Service P.O. Box 757 Tulare Airpark, Tulare, CA 93274, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2334WE	Status: Current	App Date: 03/10/1971	Rev Date: 05/19/1972
Description: Installation of Jacobs R755-A2M or R755-SM engine, JAS engine mount, Grumman SR-5404/MA96K-2 propeller and associated equipment. (A-9B RESTRICTED CATEGORY ONLY)
TC Nos.: A-758
Models: Aircraft Parts & Development Corp.A-9, A-9B
ACO: AIR-770: West Certification Branch LA

STC Holder: Johnston Aircraft Service P.O. Box 757 Tulare Airpark, Tulare, CA 93274, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA511WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Lycoming O-540-B1B5 engine, Hartzell HC-A2XK-1/8433-7 propeller required.
TC Nos.: 1A15
Models: The New Piper Aircraft Inc.PA-24 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Johnston Aircraft Service P.O. Box 757 Tulare Airpark, Tulare, CA 93274, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA511WE	Status: Historical	App Date:	Rev Date:
Description: Lycoming O-540-B1B5 engine, Hartzell HC-A2XK-1/8433-7 propeller required.
TC Nos.: 1A15
Models: The New Piper Aircraft Inc.PA-24 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200