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Other aircraft modifications

STC SR02599SE

FAA DRS lists SR02599SE as Current · Reissued, held by Kawak Aviation Technologies, Inc., for Billings Flying Service CH-47D, Columbia Helicopters CH-47D, and Unical Air CH-47D, and 1 more aircraft configuration. Recorded change: Installation of a Kawak Aviation Technologies Model 41300 auxiliary hydraulic system. Snapshot dated June 30, 2026.

FAA-listed holder
Kawak Aviation Technologies, Inc.
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a Kawak Aviation Technologies Model 41300 auxiliary hydraulic system.

SR02599SE 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: Billings Flying Service CH-47D, Columbia Helicopters CH-47D, and Unical Air CH-47D, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Billings Flying Service CH-47DR0011DEColumbia Helicopters CH-47DR00051SE
Unical Air CH-47DR00024LA
Tandem Rotor CH-47DR0014DE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Billings Flying Service CH-47D and Columbia Helicopters CH-47D, and 2 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?

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