STC ST01480NY
FAA DRS lists ST01480NY as Current · Issued, held by Duncan Aviation, Inc, for Learjet Learjet 55B and Learjet Learjet 55. Recorded change: Installation of a Universal Avionics Terrain Awareness System (TWAS). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a Universal Avionics Terrain Awareness System (TWAS).
ST01480NY 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 Learjet 55B and Learjet Learjet 55. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Learjet Learjet 55B and Learjet Learjet 55 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?
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Installation of dual Delco carousel six inertial navigation system with Vandling NDB-2 NAV data base.
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