STC ST04198AT
FAA DRS lists ST04198AT as Current · Issued, held by Stevens Aviation Inc., for Learjet 35 and Learjet 35A (C-21A). Recorded change: Installation of a single Universal Avionics UNS-1Lw Flight Management System (FMS) with LPV monitor to provide WAAS capability. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a single Universal Avionics UNS-1Lw Flight Management System (FMS) with LPV monitor to provide WAAS capability.
ST04198AT 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 35 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 35 and Learjet 35A (C-21A) model, serial range, and configuration?
- 02Which part numbers, software versions, interfaces, and manual changes apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related avionics STCs
Installation of Collins FDS-2000 Flight Display System (FDS).
FAA holder: Duncan Aviation Inc
Installation of a B.F. Goodrich Aerospace GH-3000 Standby Flight Display System. Data Required: (1) Duncan Aviation, Inc., Document List 10056100, Rev D, dated April 19, 2002; (2) Duncan Aviation, Inc., Document No. 40013300, FAA Approved Flight Manual Supplement, dated July 30, 2001; or later FAA Approved revisions to (1) or (2).
FAA holder: Duncan Aviation Inc
Installation of Matsushita Avionics Systems MPES MK II Video Entertainment System.
FAA holder: Delta Engineering
Installation of Sextant AFDS 95-1 autopilot system for IFR operations.
FAA holder: Thales Avionics Inc.