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Other aircraft modifications

STC ST01378WI

FAA DRS lists ST01378WI as Current · Issued, held by Kohlman Systems Research Inc., for Raytheon Aircraft HS.125 Series 600A. Recorded change: Reduced Vertical Separation Minimum (RVSM) non-group airworthiness approval. Snapshot dated June 30, 2026.

FAA-listed holder
Kohlman Systems Research Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Reduced Vertical Separation Minimum (RVSM) non-group airworthiness approval.

ST01378WI 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 HS.125 Series 600A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Raytheon Aircraft HS.125 Series 600AA3EU

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Raytheon Aircraft HS.125 Series 600A 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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