STC ST00581WI-D
FAA DRS lists ST00581WI-D as Current · Reissued, held by Duncan Aviation Inc, for Learjet 55, Learjet 55B, and Learjet 55C. Recorded change: Installation of Honeywell MK VII Enhanced Ground Proximity Warning System (EGPWS). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST00581WI-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 55, Learjet 55B, and Learjet 55C. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
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