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: 23

STC Holder: Aircraft Technical Service Inc 16300 Stagg Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1323WE	Status: Current	App Date:	Rev Date: 06/01/1970
Description: Fabric on ailerons, elevators, flaps and rudder with pop rivets.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 16300 Stagg Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1371WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Interior installation.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 16300 Stagg Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1371WE	Status: Historical	App Date:	Rev Date:
Description: Interior installation.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2X
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1534WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Installation of engine fire detection and extinguishment systems.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron, DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1535WE	Status: Historical	App Date:	Rev Date:
Description: Installation of combustion cabin heater.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1535WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Installation of combustion cabin heater.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1544WE	Status: Historical	App Date:	Rev Date:
Description: Cockpit modification and generator control.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron, DH 114 Heron; Series 2X
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1544WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Cockpit modification and generator control.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron, DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1545WE	Status: Current	App Date:	Rev Date: 06/25/1968
Description: Installation of cabin interior arrangement, air conditioning equipment, electrically operated air compressors.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2A, DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1710WE	Status: Historical	App Date:	Rev Date:
Description: Installation of stair door.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2A, DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1710WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Installation of stair door.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2A, DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1826WE	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Installation of 22 occupant interior.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2A, DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1826WE	Status: Historical	App Date:	Rev Date:
Description: Installation of 22 occupant interior.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron; Series 2A, DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2805WE	Status: Current	App Date:	Rev Date: 01/25/1974
Description: Nickel cadmium battery installation.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2806WE	Status: Current	App Date:	Rev Date: 01/25/1974
Description: Installation of additional emergency exits.
TC Nos.: A-816
Models: The de Havilland Aircraft Co. Ltd (England)DH 114 Heron
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 6701 Odessa Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3451WE	Status: Current	App Date:	Rev Date: 05/27/1980
Description: Installation of Hartzell HC-A3VK4/V7636D-0 or V7636N-0 constant speed propeller.
TC Nos.: 1A15
Models: The New Piper Aircraft Inc.PA-24-250
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 6701 Odessa Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4043WE	Status: Current	App Date: 06/22/1977	Rev Date: 10/26/1979
Description: Installation of Continental IO-520-BA engine and McCauley 3A32C propeller.
TC Nos.: A-777
Models: Beechcraft CorporationE35
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 6701 Odessa Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4187WE	Status: Current	App Date:	Rev Date: 07/15/1980
Description: Installation of provisions for side looking radar.
TC Nos.: 6A6
Models: Tracor Flight Systems Inc.340
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7120 Hayvenhurst Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4325WE	Status: Current	App Date:	Rev Date: 04/21/1981
Description: Installation of aft fuselage ballast.
TC Nos.: 6A1
Models: Twin Commander Aircraft Corporation500-A
ACO: AIR-770: West Certification Branch LA

STC Holder: Aircraft Technical Service Inc 7112 Sophia Avenue, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5002NM	Status: Historical	App Date:	Rev Date: 09/18/1990
Description: Installation of provisions for side looking radar.
TC Nos.: 6A6
Models: Tracor Flight Systems Inc.340
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 16543 Arminta Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA926WE	Status: Historical	App Date:	Rev Date:
Description: Spar reinforcements.
TC Nos.: L-3-4
Models: Douglas Aircraft Co. Inc.Army A-26B, Army A-26C
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 16543 Arminta Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA926WE	Status: Historical	App Date:	Rev Date: 01/01/1960
Description: Spar reinforcements.
TC Nos.: L-3-4
Models: Douglas Aircraft Co. Inc.Army A-26B, Army A-26C
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Aircraft Technical Service Inc 16021 Arminta Street, Van Nuys, CA 91406, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA926WE	Status: Current	App Date: 06/24/1964	Rev Date: 04/22/1965
Description: Modifications consist of spar reinforcements.
TC Nos.: TCS L-3
Models: P. V. ShieldsA-26B (Army), A-26C (Army)
ACO: AIR-770: West Certification Branch LA