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Other aircraft modifications

STC SA8405SW-D

FAA DRS lists SA8405SW-D as Current · Amended, held by S-TEC Corporation, for Cessna Aircraft P210R and Cessna Aircraft P210N. Recorded change: Installation of S-TEC System 55/55X two axis automatic flight guidance system, Model ST-553. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
2
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-553.

SA8405SW-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 P210R and Cessna Aircraft P210N. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft P210R3A21Cessna Aircraft P210N3A21

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft P210R and Cessna Aircraft P210N 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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