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Other aircraft modifications

STC SA2-89

FAA DRS lists SA2-89 as Current · Reissued, held by Signature Flight Support Corporation, for Twin Commander Aircraft 560. Recorded change: Installation of Lycoming GO-480-C1D6 engines and Hartzell HC 83X20-2C/8833-2 propellers. Snapshot dated June 30, 2026.

FAA-listed holder
Signature Flight Support Corporation
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Lycoming GO-480-C1D6 engines and Hartzell HC 83X20-2C/8833-2 propellers.

SA2-89 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: Twin Commander Aircraft 560. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 5606A1

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Twin Commander Aircraft 560 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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