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.
Buyer checks
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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