STC SA4891NM
FAA DRS lists SA4891NM as Current · Reissued, held by ACSS (Aviation Communication and Surveillance Syst, for Boeing 727C Series, Boeing 727-100 Series, and Boeing 727, and 3 more aircraft configurations. Recorded change: Installation of Honeywell Vertical Speed Indicator/Traffic Resolution Advisory (VSI/TRA) display. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4891NM 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 727C Series, Boeing 727-100 Series, and Boeing 727, and 3 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
Installation of Avionics Specialties, Inc. power analyzer and recorder number SL17029.
FAA holder: Aviation Ventures, Inc.
Installation of a Dual Universal Avionics UNS-1K Flight Management System with GPS as a primary means of navigation.
FAA holder: Garrett Aviation Services
Installation of an AlliedSignal Avionics TCAS II, CAS 67A.
FAA holder: Garrett Aviation Services
Installation of Collins Proline 21 Avionics System.
FAA holder: Duncan Aviation, Inc
FAA record reference
- STC number
- SA4891NM
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- Not listed
- Revision date
- February 28, 2002
- CFR references
- Part 21