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Other aircraft modifications

STC SA8400SW-D

FAA DRS lists SA8400SW-D as Current · Amended, held by S-TEC Corporation, for SOCATA - Groupe Aerospatiale TB9, SOCATA - Groupe Aerospatiale TB200, and SOCATA - Groupe Aerospatiale TB21, and 2 more aircraft configurations. Recorded change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-546. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
5
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-546.

SA8400SW-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 TB200, and SOCATA - Groupe Aerospatiale TB21, and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

SOCATA - Groupe Aerospatiale TB9A51EUSOCATA - Groupe Aerospatiale TB200A51EUSOCATA - Groupe Aerospatiale TB21A51EUSOCATA - Groupe Aerospatiale TB10A51EUSOCATA - Groupe Aerospatiale TB20A51EU

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact SOCATA - Groupe Aerospatiale TB9 and SOCATA - Groupe Aerospatiale TB200, and 3 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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