STC ST03423CH
FAA DRS lists ST03423CH as Current · Amended, held by Clay Lacy Aviation, for Gulfstream Aerospace G-IV and Gulfstream Aerospace GV. Recorded change: Installation of a Universal Avionics UNS-1Espw flight management system with UniLink UL-801datalink system and CVR-120A cockpit voice recorder to meet airworthiness requirements for FANS 1/A+. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a Universal Avionics UNS-1Espw flight management system with UniLink UL-801datalink system and CVR-120A cockpit voice recorder to meet airworthiness requirements for FANS 1/A+.
ST03423CH 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: Gulfstream Aerospace G-IV and Gulfstream Aerospace GV. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Gulfstream Aerospace G-IV and Gulfstream Aerospace GV 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 Universal Dual Cockpit Display (UCD) System. Data required: (1) Duncan Aviation Document List No. 10059400, Rev. F, dated October 20, 2004, and (2) FAA Approved Airplane Flight Manual Supplement (AFMS), Document 40031700, dated October 20, 2004; or later FAA Approved Revisions to (1) or (2).
FAA holder: Duncan Aviation Inc
Installation of a Chelton Aviation Corp (CAC) AP-3C autopilot.
FAA holder: Chelton Aviation Corporation
Modification of existing Mode S Transponder system.
FAA holder: Gulfstream Aerospace Corporation