STC SA4410NM
FAA DRS lists SA4410NM as Current · Reissued, held by Honeywell International Inc, for Textron Aviation 421B. Recorded change: ONE ONLY STC, SN 421B0205, N5962M; Installation of Sperry Model GH14B Gyro Horizon. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4410NM 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: Textron Aviation 421B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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