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Avionics

STC ST04525AT

FAA DRS lists ST04525AT as Current · Issued, held by SKH Aerospace LLC, for Yaborã Indústria Aeronáutica SA EMB-135LR. Recorded change: Installation of the Universal Avionics Flight Management System (FMS) Model No. UNS-1LW. Snapshot dated June 30, 2026.

FAA-listed holder
SKH Aerospace LLC
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of the Universal Avionics Flight Management System (FMS) Model No. UNS-1LW.

ST04525AT 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: Yaborã Indústria Aeronáutica SA EMB-135LR. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Yaborã Indústria Aeronáutica SA EMB-135LRT00011AT

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Yaborã Indústria Aeronáutica SA EMB-135LR 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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