The Aviation DataBase®
Complete Aviation Regulatory Library
Sept. 11 Sept. 11
DataBases updated: Dec 12th, 2025
Home Products Library Support Account Login Contact

STC Holder: Symons Engineering

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: 6

STC Holder:
Symons Engineering
P.O. Box 45002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-559Status: CurrentApp Date: 04/24/1957Rev Date: 08/01/1958
Description: Installation of 20 gallon auxiliary fuel tank.
TC Nos.: A-777
Models:
Beechcraft Corporation35, A35, B35, C35, D35, E35, F35
ACO: AIR-770: West Certification Branch LA
STC Holder:
Symons Engineering
P.O. Box 45002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-559Status: HistoricalApp Date: Rev Date: 01/01/1960
Description: 20-gallon auxiliary fuel tank.
TC Nos.: 3A15, A-777
Models:
Raytheon Aircraft Company35 Series, 35 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200
STC Holder:
Symons Engineering
P.O. Box 45002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-559Status: HistoricalApp Date: Rev Date:
Description: 20-gallon auxiliary fuel tank.
TC Nos.: 3A15, A-777
Models:
Raytheon Aircraft Company35 Series, 35 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200
STC Holder:
Symons Engineering
P.O. Box 90002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-971Status: HistoricalApp Date: Rev Date:
Description: 20-gallon auxiliary fuel tank in baggage compartment.
TC Nos.: 1A15
Models:
The New Piper Aircraft Inc.PA-24 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200
STC Holder:
Symons Engineering
P.O. Box 90002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-971Status: HistoricalApp Date: Rev Date: 01/01/1960
Description: 20-gallon auxiliary fuel tank in baggage compartment.
TC Nos.: 1A15
Models:
The New Piper Aircraft Inc.PA-24 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200
STC Holder:
Symons Engineering
P.O. Box 90002 Airport Station, Los Angeles, CA 90009, United States
If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-971Status: CurrentApp Date: 11/09/1959Rev Date: 03/25/1960
Description: Installation of 20 gallon auxiliary fuel tank in baggage compartment.
TC Nos.: 1A15
Models:
Piper Aircraft Inc.PA-24
ACO: AIR-770: West Certification Branch LA