STC ST04420AT
FAA DRS lists ST04420AT as Current · Reissued, held by Woven Electronics LLC, for Boeing 757-200 Series and Boeing 757-300 Series. Recorded change: Installation of the Rockwell Collins TTR-2100/TTR-921 Traffic Alert & Collision Avoidance System (TCAS), Version 7.1, and the TPR-901 Mode S Transponder. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST04420AT 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 757-200 Series and Boeing 757-300 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
Installation of modified avionics system.
FAA holder: L-3 Communications Integrated Systems LP
Installation of a TACAN System to provide a second TACAN navigation data source independent of the existing system.
FAA holder: L-3 Communications Integrated Systems LP
To provide VHF navigation radios that are FM immunity compliant for travel in European airspace.
FAA holder: L-3 Communications Integrated Systems LP
FAA record reference
- STC number
- ST04420AT
- Product
- Aircraft · Large Airplane
- Country
- United States
- Application date
- June 19, 2017
- Revision date
- June 21, 2022
- CFR references
- Part 21, Part 25, Part 26