Hughes Aero Corp PREDATOR "C" N369SL accident near Copemish, Michigan

Probable cause

The pilot's improper decision to take off with a passenger in high-density altitude conditions from a runway with tall grass present, which resulted in the powered-parachute's poor takeoff performance and its inability to clear a tree line and led to a subsequent forced landing.

NTSB analysis

The sport pilot and a passenger departed in a powered-parachute from the pilot's airstrip with calm winds. No anomalies were detected during the preflight inspection. After departure, the powered-parachute would not climb above 8 ft above ground level and was approaching 20-ft-tall trees. The pilot attempted to land between a wire fence and the tree line, and the powered-parachute subsequently impacted the ground and a tree base. The pilot reported that there were no mechanical malfunctions during the flight and stated that the air was "heavier" than expected.

The field elevation at a nearby airport was 634 ft mean sea level (msl), and the calculated density altitude was about 2,821 ft msl. A review of a recent aerial photograph of the pilot's property showed a mowed 600-ft-long runway with a northwest-southeast orientation. At the time of the accident, no runway could be seen on the property because the grass was between 6 and 12 inches tall and appeared unused except for the accident flight.

The unmowed runway and high-density altitude conditions likely affected the powered-parachute's takeoff performance, which resulted in the aircraft being unable to clear the trees near the runway.

Text from the NTSB. Open the NTSB docket for CEN18LA206 for the full record.