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: 10

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2082WE	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Installation of two Lycoming TIO-540-A2B or -N2BD turbocharged engines and two Hartzell HC-E3YR-2/ C8468-6R or -8R or 2ALF propellers.
TC Nos.: 3A10, 3A25
Models: The Cessna Aircraft Company310I, 310L, 310N, 310P, 310Q, 310R, 320B, 320C, T310P
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2093CE	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Reinstallation of original Cessna manually operated alternate engine induction air system on airplanes previously modified in accordance with STC SA2242SW.
TC Nos.: 3A10
Models: The Cessna Aircraft CompanyT310P
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2122WE	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Installation of two Lycoming TIO-540-A2B turbocharged engines and two Hartzell HC-E3YR-2/C8468-6R propellers; or installation of Lycoming TIO-540-J2BD or -N2BD and LTIO-540-J2BD or -N2BD engines with Hartzell HC-E3YR-2F/FC8468-6R or -8R and HC-E3YR-2LF/ FJC8468-6R or-8R propellers and gross weight.
TC Nos.: 3A25
Models: The Cessna Aircraft Company320C, 320E
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2242SW	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Installation of Continental TSIO-520-J engines.
TC Nos.: 3A10, 3A25
Models: The Cessna Aircraft Company310B, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 310R, 320C, 320D, 320E, 320F, T310P, T310Q, T310R
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2680SW	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Installation of turbocharged Lycoming IO-720-B1BD engines, Hartzell HC-F4YR-2RUF/FC7663DB-4R propellers and increase of maximum takeoff and landing weight to 6825 lbs.
TC Nos.: A7CE
Models: The Cessna Aircraft Company414
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA341NE	Status: Historical	App Date:	Rev Date: 07/10/1990
Description: Installation of an aft baggage compartment auxiliary fuel tank and transfer system.
TC Nos.: 3A21
Models: The Cessna Aircraft CompanyP210N
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3923WE	Status: Historical	App Date:	Rev Date: 07/05/1990
Description: Installation of Lycoming TIO-540-R2AD engines. (340A S/NS 340A0001 THRU 340A0600)
TC Nos.: 3A25
Models: The Cessna Aircraft Company340, 340A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA404NE	Status: Historical	App Date:	Rev Date: 07/10/1990
Description: Installation of a Garrett pressurization control system.
TC Nos.: 3A21
Models: The Cessna Aircraft CompanyP210N
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA441NE	Status: Historical	App Date: 04/19/1985	Rev Date: 06/05/1996
Description: Installation of vapor-cycle air conditioning system.
TC Nos.: 3A21
Models: The Cessna Aircraft CompanyP210N
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: O S Wyatt Jr Nine Greenway Plaza, Houston, TX 77046, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA441NE	Status: Historical	App Date:	Rev Date: 07/10/1990
Description: Installation of vapor-cycle air conditioning system.
TC Nos.: 3A21
Models: The Cessna Aircraft CompanyP210N
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140