STC SA4-128
FAA DRS lists SA4-128 as Current · Reissued, held by Staggerwing Museum Foundation Inc., for Hawker Beechcraft Army AT-11 and Hawker Beechcraft C18S. Recorded change: Engines, propellers, revised nacelles, wheel-well doors, air- speed system, fuel system and elevator seal strips. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4-128 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.
Related landing gear and brakes STCs
Installation and replacement of Steel Brake Components.
FAA holder: NASCO Aircraft Brake Inc
Installation of Knots 2U, Ltd Wheel and Body Fairings.
FAA holder: Knots 2U Ltd.
Installation of locking tail wheel strut.
FAA holder: 195 FACTORY LLC, The
FAA record reference
- STC number
- SA4-128
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- November 8, 1956
- Revision date
- October 6, 2006
- CFR references
- Part 21