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FAA-listed STC holder

Helicopter Transport Services LLC STCs

The Jun 30, 2026 FAA DRS snapshot lists 29 selected supplemental type certificates with status Current under Helicopter Transport Services LLC. The records span 10 public aircraft directories and 9 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

29
listed Current at snapshot
10
aircraft directories
9
modification categories
Apr 8, 2025
latest recorded revision

Modification mix

Other aircraft modifications16Rotorcraft modifications3Cargo and special mission2Fuel systems2Propellers2Electrical systems1Cabin and interiors1Avionics1Flight controls1

Aircraft represented

Bell Helicopter Textron 214ST31 STCsHelicopter Transport Services CH-54B27 STCsErickson Air-Crane S-64E20 STCsHelicopter Transport Services CH-54A20 STCsErickson Air-Crane S-64F19 STCsErickson DBA Erickson Air-Crane S-64E13 STCsSiller Helicopters CH-54A8 STCsErickson DBA Erickson Air-Crane S-64F8 STCsHelicopter Transport Services CH-54A (H16NM)3 STCsHelicopter Transport Services CH-54A (R00009SE)3 STCs

Recently revised records

Showing the 29 most recently revised records. Category directories provide the complete paginated discovery path.