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Aircraft structures

STC SR09177RC

FAA DRS lists SR09177RC as Current · Reissued, held by Midwest Aerospace TC LLC, for Garlick Helicopters UH-1B, WSH UH-1B, and International Helicopters UH-1B, and 14 more aircraft configurations. Recorded change: Modification of the vertical fin spar. Snapshot dated June 30, 2026.

FAA-listed holder
Midwest Aerospace TC LLC
Aircraft configurations
17
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Modification of the vertical fin spar.

SR09177RC 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: Garlick Helicopters UH-1B, WSH UH-1B, and International Helicopters UH-1B, and 14 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Garlick Helicopters UH-1BH13WE
WSH UH-1BH1RM
International Helicopters UH-1BH5SO
Red Tail Flying Services UH-1BR00012AT
Southwest Florida Aviation International UH-1BH6SORichards Heavylift Helo UH-1BH3SORotorcraft Development HH-1KH5NMRotorcraft Development TH-1LH5NMRotorcraft Development UH-1EH5NMRotorcraft Development UH-1LH5NMOverseas Aircraft Support UH-1EH7SOOverseas Aircraft Support UH-1LH7SOOverseas Aircraft Support TH-1LH7SOSmith Helicopters UH-1EH8NM
Bell Textron TH-1LH4NM
Bell Textron UH-1EH4NM
Bell Textron UH-1LH4NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Garlick Helicopters UH-1B and WSH UH-1B, and 15 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, loads, materials, inspections, and damage limits 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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