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Flight controls

STC SA1521GL

FAA DRS lists SA1521GL as Current · Amended, held by Knots 2U Ltd, for Piper Aircraft PA-32-301, Piper Aircraft PA-32-301FT, and Piper Aircraft PA-32-301T, and 4 more aircraft configurations. Recorded change: Installation of Flap, Aileron, Flap/Fuselage, and Stabilator Gap Seals. Snapshot dated June 30, 2026.

FAA-listed holder
Knots 2U Ltd
Aircraft configurations
7
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of Flap, Aileron, Flap/Fuselage, and Stabilator Gap Seals.

SA1521GL 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: Piper Aircraft PA-32-301, Piper Aircraft PA-32-301FT, and Piper Aircraft PA-32-301T, and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft PA-32-301A3SOPiper Aircraft PA-32-301FTA3SOPiper Aircraft PA-32-301TA3SOPiper Aircraft PA-32-301XTCA3SOPiper Aircraft PA-32R-301 (HP)A3SOPiper Aircraft PA-32R-301 (SP)A3SOPiper Aircraft PA-32R-301TA3SO

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft PA-32-301 and Piper Aircraft PA-32-301FT, and 5 more aircraft configurations 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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