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Other aircraft modifications

STC SA2-834

FAA DRS lists SA2-834 as Current · Reissued, held by Signature Flight Support Corporation, for Lockheed Martin Aeronautics 18. Recorded change: Remove the original 12-inch brass radiators, Harrison P/N 8503274 and rotary valve regulator P/N 8503428; and installation of AiResearch oil cooler P/N 4125-11-1 with regulator P/N 87151-165-13 and valve assembly P/N 18910-2-165-13. Snapshot dated June 30, 2026.

FAA-listed holder
Signature Flight Support Corporation
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Remove the original 12-inch brass radiators, Harrison P/N 8503274 and rotary valve regulator P/N 8503428; and installation of AiResearch oil cooler P/N 4125-11-1 with regulator P/N 87151-165-13 and valve assembly P/N 18910-2-165-13.

SA2-834 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: Lockheed Martin Aeronautics 18. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Lockheed Martin Aeronautics 18A-723

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Lockheed Martin Aeronautics 18 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?

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