NTSB Identification: CHI08TA239
14 CFR Public Use
Accident occurred Saturday, August 02, 2008 in Mount Clemens, MI
Probable Cause Approval Date: 05/06/2009
Aircraft: EUROCOPTER AS-350-B3, registration: N204TU
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this public aircraft accident report.

The operator reported that the helicopter had landed on the landing platform when, after shutdown, it was discovered that the helicopter was positioned too far aft on the platform. The pilot then restarted the helicopter and lifted off to reposition the helicopter on the platform. During this second approach to the platform, the pilot removed his hand from the collective control to turn off an audio radio. When the pilot returned his hand to the collective, he inadvertently lowered the collective and the helicopter descended and struck the ground.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's unintentional lowering of the collective control during approach to land, resulting in a hard landing.

Full narrative available

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