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Other aircraft modifications

STC SA4-474

FAA DRS lists SA4-474 as Current · Reissued, held by Vanaero Company, for Douglas Aircraft Co Army A-26C and Douglas Aircraft Co Army A-26B. Recorded change: Collins AP101 automatic pilot system. Snapshot dated June 30, 2026.

FAA-listed holder
Vanaero Company
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Collins AP101 automatic pilot system.

SA4-474 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: Douglas Aircraft Co Army A-26C and Douglas Aircraft Co Army A-26B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Douglas Aircraft Co Army A-26CL-3-4Douglas Aircraft Co Army A-26BL-3-4

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Douglas Aircraft Co Army A-26C and Douglas Aircraft Co Army A-26B 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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