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Avionics

STC ST04551AT

FAA DRS lists ST04551AT as Current · Issued, held by Chippewa Aerospace Inc., for Embraer SA EMB-135 and Embraer SA EMB-145. Recorded change: Installation of the Universal UNS-ILW FMS/GPS. Snapshot dated June 30, 2026.

FAA-listed holder
Chippewa Aerospace Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of the Universal UNS-ILW FMS/GPS.

ST04551AT 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: Embraer SA EMB-135 and Embraer SA EMB-145. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Embraer SA EMB-135T00011AT
Embraer SA EMB-145T00011AT

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Embraer SA EMB-135 and Embraer SA EMB-145 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?

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