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
Installation of Honeywell MK VII Enhanced Ground Proximity Warning System (EGPWS).
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
- 01Does it cover the exact Learjet 55 and Learjet 55B, 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
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Installation of a BAE Systems AN/AAR-57 Missile Warning System with an AN/ALE-47 Threat Adaptive Countermeasures Dispensing System.
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Installation of an Emergency Locator Transmitter (ELT).
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