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Other aircraft modifications

STC ST04180AT

FAA DRS lists ST04180AT as Current · Issued, held by Avionics Support Group Inc., for Boeing 727-200 Series. Recorded change: Installation of a Dual Universal UNS-1Lw Flight Management System. Snapshot dated June 30, 2026.

Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a Dual Universal UNS-1Lw Flight Management System.

ST04180AT 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: Boeing 727-200 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 727-200 Series 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?