STC SA2921WE
FAA DRS lists SA2921WE as Current · Reissued, held by Helicorp Inc., for Ryan Aeronautical ST-3KR. Recorded change: Reduce size of cockpit openings, install rounded windshields, flush rivet and increase fuselage skin gages, install internal top longerons, remove external top longerons and install internal aileron balance weight. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA2921WE 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: Ryan Aeronautical ST-3KR. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related flight controls STCs
Install STOL kit (leading edge cuff, droop tips, stall fence and aileron gap seals).
FAA holder: Curry Aviation LLC
Installation of 'speed splitter' flap bracket fairings.
FAA holder: Whelen Aerospace Technologies
Installation of 'Speed Splitter' flap bracket fairings.
FAA holder: Whelen Aerospace Technologies
FAA record reference
- STC number
- SA2921WE
- Product
- Aircraft · Small Airplane
- Country
- United States
- Application date
- April 9, 1974
- Revision date
- April 30, 2008
- CFR references
- Part 21