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: Automatic Flagman Company Rt 4, City/County Airport, Walla Walla, WA 99362, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4137NM	Status: Historical	App Date:	Rev Date: 01/22/1988
Description: Installation of a Model 6 Automatic Flagman dispensor system on the upper surface of the right wing root.
TC Nos.: A9SW
Models: Air Tractor Inc.AT-301
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Automatic Flagman Company 7251 W 4th Street, Greeley, CO 80632, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4137NM	Status: Current	App Date: 09/10/1986	Rev Date: 10/23/2003
Description: Installation of a Model 6 Automatic Flagman dispensor system on the upper surface of the right wing root.
TC Nos.: A9SW
Models: Air Tractor Inc.AT-301
ACO: AIR-770: West Certification Branch SEA