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: 2

STC Holder: Cook. William H. Jr. 875 Shoreland Drive SE, Bellevue, WA 98004, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1221NW	Status: Current	App Date: 04/21/1981	Rev Date: 04/30/1981
Description: Installation of a Champion oil filter assembly
TC Nos.: A-734
Models: Gulfstream American CorporationG-44
ACO: AIR-770: West Certification Branch SEA

STC Holder: Cook. William H. Jr. 875 Shoreland Drive SE, Bellevue, WA 98004, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA226NW	Status: Current	App Date: 08/12/1975	Rev Date: 10/29/1975
Description: Installation of a McCauley 1A175/GM8244 propeller on a Lycoming O-290-D engine
TC Nos.: 1A2
Models: Piper Aircraft Inc.PA-18-125 (Army L-21A)
ACO: AIR-770: West Certification Branch SEA