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Other aircraft modifications

STC SA09424AC-D

FAA DRS lists SA09424AC-D as Current · Issued, held by S-TEC Corporation, for Cessna Aircraft 185, Cessna Aircraft 185A, and Cessna Aircraft 185B, and 5 more aircraft configurations. Recorded change: Installation of S-TEC System 40X/50X Single and Two Axis Automatic Flight Guidance Systems, Model ST-781-40X/50X. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
8
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of S-TEC System 40X/50X Single and Two Axis Automatic Flight Guidance Systems, Model ST-781-40X/50X.

SA09424AC-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: Cessna Aircraft 185, Cessna Aircraft 185A, and Cessna Aircraft 185B, and 5 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 1853A24Cessna Aircraft 185A3A24Cessna Aircraft 185B3A24Cessna Aircraft 185C3A24Cessna Aircraft 185D3A24Cessna Aircraft 185E3A24Cessna Aircraft A185E3A24Cessna Aircraft A185F3A24

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 185 and Cessna Aircraft 185A, and 6 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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