STC ST74CH
FAA DRS lists ST74CH as Current · Reissued, held by U.S. Technical Consultants Inc., for Boeing 747-100 Series. Recorded change: Installation of a ground public telephone communication system(Seatfone) or Genstar System. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
ST74CH identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Boeing 747-100 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related aircraft connectivity STCs
Installation of HF antenna coupler mounting.
FAA holder: Textron Aviation Inc
Installation of provisions for a Commercial Wideband SATCOM (CWS) System.
FAA holder: L-3 Communications Integrated Systems LP
GPS and TCAS Antenna installations.
FAA holder: Avmax Aviation Services Inc.
FAA record reference
- STC number
- ST74CH
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- March 22, 1993
- Revision date
- September 29, 2006
- CFR references
- Part 21, Part 25