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: 3

STC Holder: Air One Helicopters, Inc 1144 Coleman Ave., San Jose, CA 95110, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4539NM	Status: Current	App Date:	Rev Date: 05/26/1989
Description: Establish a nine passenger seat configuration.
TC Nos.: 1H11
Models: Sikorsky Aircraft CorporationS-58BT, S-58DT, S-58ET, S-58FT, S-58HT, S-58JT
ACO: AIR-770: West Certification Branch LA

STC Holder: Air One Helicopters, Inc 1144 Coleman Ave., San Jose, CA 95110, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4570NM	Status: Current	App Date:	Rev Date: 11/29/1989
Description: Approval for takeoffs and landings up to and including 12,000 feet density altitude is authorized.
TC Nos.: 1H11
Models: Sikorsky Aircraft CorporationS-58BT, S-58DT, S-58ET, S-58FT, S-58HT, S-58JT
ACO: AIR-770: West Certification Branch LA

STC Holder: Air One Helicopters, Inc 1144 Coleman Ave., San Jose, CA 95110, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00363LA	Status: Current	App Date:	Rev Date: 04/10/1997
Description: Revision of seating configuration from 14 passengers to 9 passengers or less.
TC Nos.: H4SW
Models: Bell Helicopter Textron212
ACO: AIR-770: West Certification Branch LA