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Other aircraft modifications

STC ST01245WI

FAA DRS lists ST01245WI as Current · Issued, held by Kohlman Systems Research Inc., for Learjet 55. Recorded change: Reduced Vertical Separation Minimum (RVSM) non-group (individual) airworthiness approval of specific Learjet Model 55 aircraft in accordance with Kohlman Systems Research (KSR) Master Drawing List Lear 55 RVSM, Drawing No. MDL 1002, Rev. A , dated March 16, 2004, or later FAA approved revision. 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 (individual) airworthiness approval of specific Learjet Model 55 aircraft in accordance with Kohlman Systems Research (KSR) Master Drawing List Lear 55 RVSM, Drawing No. MDL 1002, Rev. A , dated March 16, 2004, or later FAA approved revision.

ST01245WI 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: Learjet 55. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 55A10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 55 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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