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FAA-listed STC holder

WSH LLC STCs

The Jun 30, 2026 FAA DRS snapshot lists 5 selected supplemental type certificates with status Current under WSH LLC. The records span 20 public aircraft directories and 4 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

5
listed Current at snapshot
20
aircraft directories
4
modification categories
Aug 17, 2023
latest recorded revision

Modification mix

Engine and powerplant2
Other aircraft modifications1
Electrical systems1
Aircraft structures1

Aircraft represented

Bell Helicopter Textron 204B58 STCsBell Helicopter Textron 214B52 STCsBell Helicopter Textron 214B-147 STCsBell Textron 21246 STCsBell Textron 205A-138 STCsRichards Heavylift Helo UH-1B19 STCsRotorcraft Development UH-1B16 STCsBell Textron 204B16 STCsInternational Helicopters UH-1B14 STCsSan Joaquin Helicopters UH-1B11 STCsOverseas Aircraft Support UH-1E9 STCsRotorcraft Development UH-1E8 STCsOverseas Aircraft Support UH-1B6 STCsBell Helicopter Textron UH-1E6 STCsAirbus Helicopters SA.315B Alouette III5 STCsSmith Helicopters UH-1E5 STCsSouthwest Florida Aviation International SW204 (UH-1B)4 STCsSouthwest Florida Aviation International SW204HP (UH-1B)4 STCsErickson 214 Holdings 214B4 STCsErickson 214 Holdings 214B-14 STCs

Recently revised records

Showing the 5 most recently revised records. Category directories provide the complete paginated discovery path.