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Other aircraft modifications

STC ST02379AT

FAA DRS lists ST02379AT as Current · Issued, held by Raytheon Aircraft Services, Inc, for Raytheon Aircraft 65-A90-2 (RU-21B), Raytheon Aircraft 65-A90-1 Series, and Raytheon Aircraft 65-A90-4 (RU-21E), and 16 more aircraft configurations. Recorded change: Installation of a cockpit speaker and aural warning muting system. Snapshot dated June 30, 2026.

Aircraft configurations
19
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a cockpit speaker and aural warning muting system.

ST02379AT 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: Raytheon Aircraft 65-A90-2 (RU-21B), Raytheon Aircraft 65-A90-1 Series, and Raytheon Aircraft 65-A90-4 (RU-21E), and 16 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Raytheon Aircraft 65-A90-2 (RU-21B) and Raytheon Aircraft 65-A90-1 Series, and 17 more aircraft configurations 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?