STC SH177WE
FAA DRS lists SH177WE as Current · Reissued, held by Siam Hiller Holdings Inc, for Hiller Aviation UH-12D (Army UH-23D). Recorded change: Installation of Allison 250-C20/250-C20B engine and related changes. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SH177WE 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.
Related engine and powerplant STCs
Installation of turbocharged Lycoming O-540-E4B5 engine.
FAA holder: TALCO Aviation
View record
FAA record reference
- STC number
- SH177WE
- Product
- Aircraft · Rotorcraft
- Country
- United States
- Application date
- November 27, 1967
- Revision date
- May 13, 2005
- CFR references
- Part 21, Part 27, Part 91, Part 133