STC ST00790WI-D
FAA DRS lists ST00790WI-D as Current · Reissued, held by Duncan Aviation Inc, for Gulfstream Aerospace LP 1125 Westwind Astra. Recorded change: Installation of Allied Signal MK VII Enhanced Ground Proximity Warning System (EGPWS) with Windshear in the Israel Aircraft Industries, LTD, Model 1125 Westwind Astra Airplanes. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Allied Signal MK VII Enhanced Ground Proximity Warning System (EGPWS) with Windshear in the Israel Aircraft Industries, LTD, Model 1125 Westwind Astra Airplanes.
ST00790WI-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: Gulfstream Aerospace LP 1125 Westwind Astra. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Gulfstream Aerospace LP 1125 Westwind Astra 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 ground proximity warning system with cockpit annunciations deactivated and warning signals connected to digital recorder. (727-222).
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Installation of Collins FPC-75 Ground Proximity Warning System Computer P/N 622-2615-012 or P/N 622-2615-212 or P/N 622-2615-213, in airplanes with provisions installed per United Air Lines DAS STC SA2826WE-D revised April 3, 1975, or later approved revisions, and United Air Lines, DAS-1-WE, Approved Drawing List No. 3079 dated February 2, 1979, or later FAA approved revisions. United Air Lines FAA Approved Airplane Flight Manual Supplements dated March 17, 1976, or later approved revisions to Boeing Airplane Flight Manual Documents D6-8727.1/.1C and DC-8728.1, is required as part of this installation.
FAA holder: United Airlines Inc