STC SA8401SW-D
FAA DRS lists SA8401SW-D as Current · Amended, held by S-TEC Corporation, for SOCATA - Groupe Aerospatiale TB9, SOCATA - Groupe Aerospatiale TB10, and SOCATA - Groupe Aerospatiale TB20, and 2 more aircraft configurations. Recorded change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-547. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA8401SW-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: SOCATA - Groupe Aerospatiale TB9, SOCATA - Groupe Aerospatiale TB10, and SOCATA - Groupe Aerospatiale TB20, and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
Related other aircraft modifications STCs
Installation of a Avtech CSD-714 Selective Calling (SELCAL).
FAA holder: Woven Electronics LLC
Installation of a Honeywell High Speed Data Terminal / High Power Amp.
FAA holder: Woven Electronics LLC
Installation of LED Position and Recognition Lights.
FAA holder: Whelen Aerospace Technologies
Use of GAMI G100UL High Octane Unleaded Avgas.
FAA holder: General Aviation Modifications Inc.