STC SA8404SW-D
FAA DRS lists SA8404SW-D as Current · Amended, held by S-TEC Corporation, for Raytheon Aircraft 58 and Raytheon Aircraft 58A. Recorded change: Installation of S-TEC System 55/55X two axis automatic flight guidance system Model ST-550. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA8404SW-D 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 58 and Raytheon Aircraft 58A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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Related other aircraft modifications STCs
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