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: Robertson Aircraft Corp 839 West Perimeter Road, Renton, WA 98055, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1431WE	Status: Current	App Date:	Rev Date: 04/02/1978
Description: Installation of rudder trim system.
TC Nos.: 3A12, 3A17, 3A19, 5A6, A13CE
Models: The Cessna Aircraft Company150E, 150F, 150G, 172, 172A, 172B, 172C, 172D, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172M, 175A, 175B, 175C, 177, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H
ACO: AIR-770: West Certification Branch SEA

STC Holder: Robertson Aircraft Corp 839 West Perimeter Road, Renton, WA 98055, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2326WE	Status: Historical	App Date:	Rev Date: 11/05/1973
Description: Installation of recontoured wing leading edge, stall fences, and wing tips. (P206A LANDPLANE) (TP206E LANDPLANE AND SKIPLANE) (P206 LANDPLANE AND FLOATPLANE) (TU206E SKIPLANE)
TC Nos.: A4CE
Models: The Cessna Aircraft Company206, P206, P206A, P206B, P206C, P206D, P206E, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B, TU206C, TU206D, TU206E, U206, U206A, U206B, U206C, U206D
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Robertson Aircraft Corp 839 West Perimeter Road, Renton, WA 98055, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA474NW	Status: Historical	App Date:	Rev Date:
Description: Replace original split flaps with Fowler flaps.
TC Nos.: 3A25
Models: The Cessna Aircraft Company340 Series
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Robertson Aircraft Corp 839 West Perimeter Road, Renton, WA 98055, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA854NW	Status: Current	App Date: 10/22/1979	Rev Date: 10/30/1979
Description: Installation of droop aileron system, stall fences and stall strips
TC Nos.: 3A21
Models: Cessna Aircraft CompanyT210N
ACO: AIR-770: West Certification Branch SEA