STC ST04221NY
FAA DRS lists ST04221NY as Current · Issued, held by Lee Aerospace Inc., for Learjet 31, Learjet 31A, and Learjet 35A (C-21A). Recorded change: Installation of LAI Heated Windshields. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of LAI Heated Windshields.
ST04221NY 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: Learjet 31, Learjet 31A, and Learjet 35A (C-21A). Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Learjet 31 and Learjet 31A, and 1 more aircraft configuration model, serial range, and configuration?
- 02Which configuration, parts, installation data, limitations, and ICAs apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related other aircraft modifications STCs
Installation of parts listed on Airmotive Drawing No. 8810-3.
FAA holder: Continental Motors, Inc.
Installation of parts listed on Airmotive Engineering Drawing List No. 8810-3, Revision No. 6, dated 11/3/89, or later FAA approved revision.
FAA holder: Continental Motors, Inc.
Installation of parts listed on Airmotive List No. 8810-3, Rev 6.
FAA holder: Continental Motors, Inc.
Installation of parts listed on Airmotive List 8810-3, Rev 6.
FAA holder: Continental Motors, Inc.