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FAA-listed STC holder

Siam Hiller Holdings Inc STCs

The Jun 30, 2026 FAA DRS snapshot lists 27 selected supplemental type certificates with status Current under Siam Hiller Holdings Inc. The records span 12 public aircraft directories and 6 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

27
listed Current at snapshot
12
aircraft directories
6
modification categories
May 15, 2009
latest recorded revision

Modification mix

Engine and powerplant13Cargo and special mission6Fuel systems3Landing gear and brakes2Cabin and interiors2Other aircraft modifications1

Aircraft represented

Rogerson Hiller UH-12E13 STCsHiller Aviation UH-12D (Army UH-23D)12 STCsBell Helicopter Textron 47G-2A7 STCsBell Helicopter Textron 47G-2A-17 STCsBell Helicopter Textron 47G-3B7 STCsBell Helicopter Textron 47G-3B-16 STCsBell Helicopter Textron 47G-46 STCsBell Helicopter Textron 47G-4A6 STCsBell Helicopter Textron 47G-3B-25 STCsBell Helicopter Textron 47G-55 STCsBell Helicopter Textron 47G-5A5 STCsBell Helicopter Textron 47G-3B-2A4 STCs

Recently revised records

Showing the 27 most recently revised records. Category directories provide the complete paginated discovery path.