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Other aircraft modifications

STC ST00740CH-D

FAA DRS lists ST00740CH-D as Current · Reissued, held by Duncan Aviation Inc, for Cessna Aircraft 560, Cessna Aircraft S550, and Cessna Aircraft 550. Recorded change: Installation of a single GNS-XL Flight Management System, or removal of the existing GNS-XES Flight Management System and installation of GNS-XL Flight Management System. Snapshot dated June 30, 2026.

FAA-listed holder
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a single GNS-XL Flight Management System, or removal of the existing GNS-XES Flight Management System and installation of GNS-XL Flight Management System.

ST00740CH-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: Cessna Aircraft 560, Cessna Aircraft S550, and Cessna Aircraft 550. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 560 and Cessna Aircraft S550, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs 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?