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Engine and powerplant

STC SH2928NM

FAA DRS lists SH2928NM as Current · Amended, held by Columbia Helicopters Inc, for Boeing Defense & Space Group 234. Recorded change: Installation of an improved engine electrical wiring harness on Boeing Vertol 234 with Lycoming AL5512 engines. Snapshot dated June 30, 2026.

FAA-listed holder
Columbia Helicopters Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of an improved engine electrical wiring harness on Boeing Vertol 234 with Lycoming AL5512 engines.

SH2928NM 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: Boeing Defense & Space Group 234. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing Defense & Space Group 234H9EA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing Defense & Space Group 234 model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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