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Other aircraft modifications

STC SA09511AC-D

FAA DRS lists SA09511AC-D as Current · Issued, held by S-TEC Corporation, for Cessna Aircraft 310, Cessna Aircraft 310A, and Cessna Aircraft 310B, and 1 more aircraft configuration. Recorded change: Installation of S-TEC System 20/30 single and two-axis automatic flight guidance systems, model ST-888-20/30. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
4
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of S-TEC System 20/30 single and two-axis automatic flight guidance systems, model ST-888-20/30.

SA09511AC-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 310, Cessna Aircraft 310A, and Cessna Aircraft 310B, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 3103A10Cessna Aircraft 310A3A10Cessna Aircraft 310B3A10Cessna Aircraft 310C3A10

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 310 and Cessna Aircraft 310A, and 2 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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