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Avionics

STC ST03912NY

FAA DRS lists ST03912NY as Current · Issued, held by CESSNA Duesseldorf Citation Service, for Textron Aviation 550. Recorded change: Upgrade of the GNS-XLS Single or Dual Fight Management System (FMS) to attain P-RNAV capability at RNP10, RNP4 and RNP1. Snapshot dated June 30, 2026.

Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Upgrade of the GNS-XLS Single or Dual Fight Management System (FMS) to attain P-RNAV capability at RNP10, RNP4 and RNP1.

ST03912NY 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: Textron Aviation 550. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Textron Aviation 550 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?