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Flight controls

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.

FAA-listed holder
Helicorp Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

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.

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.

Ryan Aeronautical ST-3KRA-749

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Ryan Aeronautical ST-3KR model, serial range, and configuration?
  2. 02Which control configuration, rigging, limitations, and inspections 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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