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Avionics

STC ST02637LA

FAA DRS lists ST02637LA as Current · Issued, held by Aviation Communication and Surveillance Systems (ACSS) LLC, for Boeing 747-400 Series and Boeing 747-400F Series. Recorded change: Installation of the Aviation Communication & Surveillance Systems (ACSS) Surveillance Processor (TCAS Change 7.1) and NXT-800 Mode S/ADS-B Out Transponder systems. Snapshot dated June 30, 2026.

FAA-listed holder
Aviation Communication and Surveillance Systems (ACSS) LLC
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of the Aviation Communication & Surveillance Systems (ACSS) Surveillance Processor (TCAS Change 7.1) and NXT-800 Mode S/ADS-B Out Transponder systems.

ST02637LA 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 747-400 Series and Boeing 747-400F Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-400 SeriesA20WEBoeing 747-400F SeriesA20WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 747-400 Series and Boeing 747-400F Series 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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