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: Siren USA Inc 14212 S.E. 51st, Bellevue, WA 98006, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4143NM	Status: Historical	App Date: 10/28/1987	Rev Date: 11/19/1987
Description: Installation of alternate 7th pallet arrangement.
TC Nos.: A20WE
Models: The Boeing Company747-200B Series, 747-300 Series
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Siren USA Inc 14212 S.E. 51st, Bellevue, WA 98006, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4144NM	Status: Historical	App Date: 10/28/1987	Rev Date: 11/19/1987
Description: Installation of alternate 7th pallet arrangement.
TC Nos.: A20WE
Models: The Boeing Company747-200B Series, 747-300 Series
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500