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Flight controls

STC SA8889SW-D

FAA DRS lists SA8889SW-D as Current · Amended, held by S-TEC Corporation, for Cessna Aircraft 210D, Cessna Aircraft 210E, and Cessna Aircraft 210F, and 1 more aircraft configuration. Recorded change: Installation of S-TEC System 55 Two Axis Automatic Flight Guidance System, model ST-558, with Optional Automatic Electric Trim System. Eligible when modified per STC SA1525WE (Robertson STOL). Snapshot dated June 30, 2026.

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

Recorded modification

What the FAA record covers

Installation of S-TEC System 55 Two Axis Automatic Flight Guidance System, model ST-558, with Optional Automatic Electric Trim System. Eligible when modified per STC SA1525WE (Robertson STOL).

SA8889SW-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 210D, Cessna Aircraft 210E, and Cessna Aircraft 210F, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 210D3A21Cessna Aircraft 210E3A21Cessna Aircraft 210F3A21Cessna Aircraft T210F3A21

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 210D and Cessna Aircraft 210E, and 2 more aircraft configurations model, serial range, and configuration?
  2. 02Which control configuration, rigging, limitations, and inspections 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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