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Other aircraft modifications

STC SA4-229

FAA DRS lists SA4-229 as Current · Reissued, held by American Navion Society, for Navion Aircraft Navion A (Army L-17B and L-17C), Navion Aircraft Navion B, and Navion Aircraft Navion (Army L-17A). Recorded change: 1. Removal or original step and installing Retractable step and handle. 2. Installation in accordance with Robert Douthitt s Sheet number 1 to Sheet number 10 and Installation Instructions. Snapshot dated June 30, 2026.

FAA-listed holder
American Navion Society
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

1. Removal or original step and installing Retractable step and handle. 2. Installation in accordance with Robert Douthitt s Sheet number 1 to Sheet number 10 and Installation Instructions.

SA4-229 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: Navion Aircraft Navion A (Army L-17B and L-17C), Navion Aircraft Navion B, and Navion Aircraft Navion (Army L-17A). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Navion Aircraft Navion A (Army L-17B and L-17C)A-782Navion Aircraft Navion BA-782Navion Aircraft Navion (Army L-17A)A-782

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Navion Aircraft Navion A (Army L-17B and L-17C) and Navion Aircraft Navion B, and 1 more aircraft configuration 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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