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Engine and powerplant

STC SA4-529

FAA DRS lists SA4-529 as Current · Reissued, held by Vanaero Company, for Douglas Aircraft Co Army B-23 and Douglas Aircraft Co Army UC-67. Recorded change: Short engine exhaust stacks and modified nacelle and exhaust shroud on aircraft equipped with Wright R-2600-29 engines. 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

Short engine exhaust stacks and modified nacelle and exhaust shroud on aircraft equipped with Wright R-2600-29 engines.

SA4-529 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 B-23 and Douglas Aircraft Co Army UC-67. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Douglas Aircraft Co Army B-232-576
Douglas Aircraft Co Army UC-672-576

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Douglas Aircraft Co Army B-23 and Douglas Aircraft Co Army UC-67 model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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