Type certificates · aircraft · rotorcraft · current

Type certificate H7SO

Held today by Overseas Aircraft Support INC., earlier by Offshore Construction\Scott Paper Co.\Williams Helicopter Corporation. It covers 5 models. Last revised April 20, 2021 (revision 14). 38 approved modifications build on it.

Models under this certificate 5

TH-1L, UH-1B, UH-1L, UH-1H, UH-1E

The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.

FAA orders on these designs 0 · newest first

None in the current files.

Approved modifications 38 · companies holding the most

Midwest Aerospace Tc LLC 5 Dart Aerospace Limited 4 Blr Aerospace LLC. 3 Wsh, LLC 2 Vector Aerospace Helicopter Services USA INC. 2 Isolair INC. 2 Global Spar LLC 2 Akv INC. 2

Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/H7SO.json.