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Safety and emergency equipment

STC ST00077WI

FAA DRS lists ST00077WI as Current · Amended, held by Duncan Aviation, Inc, for Learjet Learjet 36A, Learjet Learjet 36, and Learjet Learjet 35A (C-21A), and 1 more aircraft configuration. Recorded change: Installation of a Sundstrand Mark VII ground proximity/ windshear warning system. Snapshot dated June 30, 2026.

FAA-listed holder
Aircraft configurations
4
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

ST00077WI 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 36A, Learjet Learjet 36, and Learjet Learjet 35A (C-21A), and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing