STC ST04457AT
FAA DRS lists ST04457AT as Current · Issued, held by Avionics Support Group Inc., for Boeing 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Recorded change: Installation of the dual Rockwell Collins TPR-901, ADS-B out capable transponder system and dual GPS-4000S position sensor. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST04457AT 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 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
The Rockwell Collins TDR-94D Transponder Upgrade - ADS-B Out.
FAA holder: MidCanada Mod Center
Installation of the Garmin 400W, Rockwell Collins TCAS 4000 / Dual TDR-94D Transponder.
FAA holder: Mid Canada Mod Center
FAA record reference
- STC number
- ST04457AT
- Product
- Aircraft · Large Airplane
- Country
- United States
- Application date
- July 5, 2017
- Revision date
- August 22, 2019
- CFR references
- Part 21, Part 25, Part 26