Incident Overview
A helicopter operating from the deck of a fishing vessel experienced a rollover accident during takeoff when one of its tie-down straps remained attached. The helicopter is typically secured to the deck by four straps fastened to its skids when not in use.
Sequence of Events
The pilot entered the helicopter for takeoff while a mechanic removed the tie-downs. According to the pilot, during the attempted takeoff, one tie-down was still connected to the helicopter. This caused the helicopter to roll to the right and strike the helipad.
Damage
The accident resulted in substantial damage to the main rotor, mast, and tail boom. The pilot reported no preimpact mechanical failures or malfunctions that would have prevented normal operation.
Conclusion
The incident highlights the critical importance of ensuring all tie-downs are removed before helicopter departure. No other contributing factors were reported.