STC ST01051CH-D
FAA DRS lists ST01051CH-D as Current · Reissued, held by Landmark Aviation, for Learjet Learjet 55C, Learjet Learjet 55B, and Learjet Learjet 55. Recorded change: Installation of an AlliedSignal Inc TFE731-3C/3CR Turbofan engine(s). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST01051CH-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 55C, Learjet Learjet 55B, and Learjet Learjet 55. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
Related engine and powerplant STCs
Installation of NS80-200 Voltmeter, NS80-300 Ammeter, NS80-400 Flap Indicator, NS80-500 Fuel Quantity Indicators, NS80-800 Engine Instruments.
FAA holder: North Star Aircraft Maintenance Ltd.
Manufacture of replacement engine cowling.
FAA holder: Bell Helicopter Textron Inc.
Installation of alternate Ram Air System for engine induction and sealed cowling.
FAA holder: D'Shannon Products Ltd.