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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