STC ST04449AT
FAA DRS lists ST04449AT as Current · Issued, held by LB Aircraft Engineering Inc, for Boeing 737-200 Series, Boeing 737-300 Series, and Boeing 737-400 Series, and 1 more aircraft configuration. Recorded change: Replacement of the dual Honeywell or Collins enhanced Mode S transponders with a dual ACSS XS-950 Automatic Dependent Surveillance - Broadcast (ADS-B) Out System. Installation of Gables G7490-() control panel to provide Flight I.D. data and Transponder Fail annunciation. Installation of ADS-B Function FAIL annunciators. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST04449AT 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 737-200 Series, Boeing 737-300 Series, and Boeing 737-400 Series, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
Installation of Garmin G500H Flight Display System.
FAA holder: Maxcraft Avionics Ltd.
Installation of an L3 Communication Avionics Systems GH3900.2 Electronic Standby Instrument System (ESIS).
FAA holder: West Star Aviation Inc
Installation of Bendix/King 660 flight management system, RDS84VP weather rader, and GC 360A radar graphics, and a radio package modification.
FAA holder: Helicopter Aviation Services Corporation
FAA record reference
- STC number
- ST04449AT
- Product
- Aircraft · Large Airplane
- Country
- United States
- Application date
- April 18, 2016
- Revision date
- May 10, 2019
- CFR references
- Part 21, Part 25, Part 26