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Other aircraft modifications

STC SR00144DE

FAA DRS lists SR00144DE as Current · Reissued, held by Midwest Aerospace TC LLC, for Bell Helicopter Textron 204B. Recorded change: Installation of an upgraded 42 degree tail rotor gearbox. Snapshot dated June 30, 2026.

FAA-listed holder
Midwest Aerospace TC LLC
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an upgraded 42 degree tail rotor gearbox.

SR00144DE 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: Bell Helicopter Textron 204B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bell Helicopter Textron 204BH1SW

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bell Helicopter Textron 204B 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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