Incident Summary
A helicopter sustained damage in a dynamic rollover while landing on a utility trailer. The accident occurred when the toe of the left skid became caught under the trailer's side rail, causing the helicopter to tip over. The main rotor blades contacted the ground, and the helicopter came to rest on its left side.
Background
The helicopter was due for a 100-hour inspection. According to the pilot, ground handling wheels were not available to move the helicopter into the hangar for the scheduled maintenance. As an alternative, the mechanic requested the pilot to reposition the helicopter onto a utility trailer equipped with 18-inch side rails, so that it could be transported to the hangar.
The pilot's decision to proceed with the landing on the trailer was influenced by the fact that the helicopter was scheduled for an aerial application flight the following morning.
Sequence of Events
During the landing attempt on the trailer, the toe of the left skid became caught under the side rail of the trailer. This led to a dynamic rollover. The main rotor blades struck the ground, and the helicopter came to rest on its left side.