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.
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.
Buyer checks
Confirm before sourcing
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.