STC SA4121SW
FAA DRS lists SA4121SW as Current · Reissued, held by Curry Aviation LLC, for Textron Aviation 180, Textron Aviation 180A, and Textron Aviation 180B, and 36 more aircraft configurations. Recorded change: Add wing strut fairings and contour wing struts. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Add wing strut fairings and contour wing struts.
SA4121SW 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: Textron Aviation 180, Textron Aviation 180A, and Textron Aviation 180B, and 36 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Textron Aviation 180 and Textron Aviation 180A, and 37 more aircraft configurations model, serial range, and configuration?
- 02Which configuration, loads, materials, inspections, and damage limits apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related aircraft structures STCs
Development and Installation of High Visibility Crew Door in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-01073, No Revision, Dated July 20, 2001, or later FAA approved revision.
FAA holder: Bell Helicopter Textron Inc.
Installation of passenger photo window in accordance with Aeronautical Accessories, Inc. Drawing List AA-02013, Revision F, dated October 14, 2005, or later DAS approved revision.
FAA holder: Bell Helicopter Textron Inc.
High Visibility Crew Door Kits in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-03141, Revision B, dated March 4, 2004, or later DAS approved revisions; and installation per Report No. AA-03137, Revision A, dated February 9, 2004, and AA-03145, Revision A, dated February 25, 2004 or later DAS approved revisions.
FAA holder: Bell Helicopter Textron Inc.
High Visibility Door Kits in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-05155, Revision G, dated January 25, 2007, or later DAS approved revision; and Installation Instructions Report No. AA-06086, Revision D, dated January 25, 2007 or later DAS approved revision.
FAA holder: Bell Helicopter Textron Inc.