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: Progressive Mfg Co 1101 S. Ninth Street, Kansas City, KS 66105, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1388CE	Status: Historical	App Date:	Rev Date: 12/08/1977
Description: Replace magnesium or aluminum for- ward thrust reverser blocker doors with nylon doors. (707, 720 AIRPLANES EQUIPPED WITH BOEING P/N 65-11685 AND 65-68862 FORWARD THRUST REVERSER DOORS)
TC Nos.: 4A21, 4A26, 4A28
Models: The Boeing Company707, 707, 720
ACO: Wichita ACO Branch, Tel: +1 (316) 946-4100