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Other aircraft modifications

STC SA2-523

FAA DRS lists SA2-523 as Current · Reissued, held by Staggerwing Museum Foundation Inc., for Hawker Beechcraft Army AT-11 and Hawker Beechcraft C18S. Recorded change: Revise horizontal stabilizer angle of incidence from -3.6 degrees to-0.5 degrees. Snapshot dated June 30, 2026.

FAA-listed holder
Staggerwing Museum Foundation Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Revise horizontal stabilizer angle of incidence from -3.6 degrees to-0.5 degrees.

SA2-523 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: Hawker Beechcraft Army AT-11 and Hawker Beechcraft C18S. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Hawker Beechcraft Army AT-11A-2-582Hawker Beechcraft C18SA-757

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Hawker Beechcraft Army AT-11 and Hawker Beechcraft C18S 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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