Skip to content
Avionics

STC ST00523WI-D

FAA DRS lists ST00523WI-D as Current · Reissued, held by Duncan Aviation Inc, for Lockheed Martin 1329-23A, Lockheed Martin 1329-23D, and Lockheed Martin 1329-23E, and 1 more aircraft configuration. Recorded change: Installation of an AlliedSignal Avionics, Inc., GNS-XIs Flight Management System (Dual). Snapshot dated June 30, 2026.

FAA-listed holder
Duncan Aviation Inc
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an AlliedSignal Avionics, Inc., GNS-XIs Flight Management System (Dual).

ST00523WI-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: Lockheed Martin 1329-23A, Lockheed Martin 1329-23D, and Lockheed Martin 1329-23E, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Lockheed Martin 1329-23A2A15Lockheed Martin 1329-23D2A15Lockheed Martin 1329-23E2A15Lockheed Martin 1329-252A15

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Lockheed Martin 1329-23A and Lockheed Martin 1329-23D, and 2 more aircraft configurations model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

Related avionics STCs