Accident Summary
A helicopter experienced a rollover during a confined area takeoff from a location where the pilot had previously operated successfully. The aircraft came to rest on its side, with the right skid digging into rain-softened ground.
Pilot Account
The pilot reported that, after positioning the helicopter, he performed a vertical takeoff to clear a stand of trees. Upon reaching a hover just above the treetops, he felt a loss of power and nosed over in an attempt to gain airspeed. Unable to accelerate, he turned toward a narrow clearing using right pedal input and reduced collective to land. During the landing, the right skid penetrated the ground, causing the helicopter to roll onto its side, damaging the rotor blades.
Environmental Conditions
The pilot noted that rain had been falling for 1½ days prior to the accident. The morning of the event was described as "hot and muggy" with an estimated temperature of 95°F, high humidity, and no wind. The area elevation is approximately 941 feet above mean sea level.
Contributing Factors
The pilot stated that he did not suspect any mechanical failure, as the engine appeared to be operating normally. He believed the accident was influenced by density altitude, gross weight, and the helicopter operating out of ground effect.