STC SH475NW
FAA DRS lists SH475NW as Current · Reissued, held by Siam Hiller Holdings Inc, for Hiller Aviation UH-12D (Army UH-23D). Recorded change: Installation of an agricultural spray system. (UH-12D (ARMY UH-23D) modifier per STC). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SH475NW 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
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