STC SA5491NM
FAA DRS lists SA5491NM as Current · Reissued, held by Horizon Instruments Inc, for Raytheon Aircraft 35-33, Raytheon Aircraft 35-A33, and Raytheon Aircraft 35-B33, and 23 more aircraft configurations. Recorded change: Installation of engine electronic digital tachometer. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA5491NM 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: Raytheon Aircraft 35-33, Raytheon Aircraft 35-A33, and Raytheon Aircraft 35-B33, and 23 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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