STC ST01911LA
FAA DRS lists ST01911LA as Current · Issued, held by Aviation Communication and Surveillance Systems (ACSS) LLC, for Boeing 747-400 Series. Recorded change: Installation of ACSS Mode S Transponder with ELS/EHS capability to replace Mode S Transponder in existing ACSS Traffic Alert and Collision Avoidance System TCAS II. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST01911LA 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 747-400 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
Installation of Universal Avionics UNS-1D Flight Management System (FMS).
FAA holder: Garrett Aviation Services
Installation of Universal Avionics Systems Terrain Awareness Warning System (TAWS).
FAA holder: Garrett Aviation Services
Installation of Collins FDS-2000 Flight Display System (FDS).
FAA holder: Duncan Aviation Inc
FAA record reference
- STC number
- ST01911LA
- Product
- Aircraft · Large Airplane
- Country
- United States
- Application date
- December 1, 2005
- Revision date
- August 7, 2006
- CFR references
- Part 21