STC ST01259CH-D
FAA DRS lists ST01259CH-D as Current · Amended, held by Garrett Aviation Services, for Learjet Learjet 31, Learjet Learjet 31 Series, and Learjet Learjet 31A. Recorded change: Installation of an AlliedSignal Mark VII Enhanced Ground Proximity Warning System. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of an AlliedSignal Mark VII Enhanced Ground Proximity Warning System.
ST01259CH-D 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 31, Learjet Learjet 31 Series, and Learjet Learjet 31A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Learjet Learjet 31 and Learjet Learjet 31 Series, and 1 more aircraft configuration model, serial range, and configuration?
- 02Which equipment, inspection intervals, procedures, and limitations apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related safety and emergency equipment STCs
Installation of a Honeywell Mark VII Enhanced Ground Proximity Warning System to replace the existing Mark II Ground Proximity Warning System.
FAA holder: Canard Aerospace Corporation
Installation of Air Cruisers Company Emergency Flotation Installation Kit P/N/ 67585-101.
FAA holder: Air Cruisers Company
Installation of Honeywell Aerospace MARK 7 Enhanced Ground Proximity Warning System (EGPWS) Upgrade.
FAA holder: Dassault Falcon Jet - Wilmington Corp
Installation of 406 MHz Emergency Locator Transmitter (ELT).
FAA holder: Aviation Systems Standards, Aircraft Maintenance and Engineering Division AVN-300