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: 1

STC Holder: Melvin C Holten 1211 Springbrook Rd, Lake Stevens, WA 98257, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1255NW	Status: Current	App Date: 02/17/1979	Rev Date: 06/11/1981
Description: Installation of a Lycoming IO-360-B1B engine, Hartzell HC-C2YK-1BF/F7666A-2 propeller and associated systems
TC Nos.: 1A4
Models: Piper Aircraft Inc.PA-20-135
ACO: AIR-770: West Certification Branch SEA