STC SH297NW
FAA DRS lists SH297NW as Current · Reissued, held by Siam Hiller Holdings Inc, for Hiller Aviation UH-12D (Army UH-23D). Recorded change: Installation and maintenance of a cabin heater system. (UH-12D (ARMY UH-23D modified per STC SH178WE). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation and maintenance of a cabin heater system. (UH-12D (ARMY UH-23D modified per STC SH178WE).
SH297NW 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: Hiller Aviation UH-12D (Army UH-23D). Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Hiller Aviation UH-12D (Army UH-23D) model, serial range, and configuration?
- 02Which layout, materials, flammability evidence, and weight changes apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related cabin and interiors STCs
Installation of an Executive Cabin Interior.
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Interior compliance inspection required for one and only STC for an existing configuration on 737-200 MSN 23148 that was previously approved as a major alteration.
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Installation of the Replacement Hammock Seat Support.
FAA holder: Sealand Aviation Ltd