Primary finding
Probable cause
The pilot’s decision to take off in high-density altitude conditions, which resulted in the powered parachute being unable to maintain a sufficient climb rate and its subsequent impact with power lines.
Investigator assessment
Analysis narrative
The pilot of the powered parachute reported that the flight got started later in the day than he had planned and that the temperature and relative humidity had risen. He further reported that during the initial climb the powered parachute was unable to gain sufficient lift to maintain a climb rate required to clear nearby power lines. Subsequently, the powered parachute struck the power lines. The powered parachute sustained substantial damage to its tubular frame. The pilot reported that the air temperature at the time of the accident was 94 degrees Fahrenheit, with a density altitude of 1,800 feet. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Source record
Factual narrative
The pilot of the powered parachute reported that the flight got started later in the day than he had planned and that the temperature and relative humidity had risen. He further reported that during the initial climb the powered parachute was unable to gain sufficient lift to maintain a climb rate required to clear nearby power lines. Subsequently, the powered parachute stuck the power lines. The powered parachute sustained substantial damage to its tubular frame. The pilot reported that the air temperature at the time of the accident was 94 degrees Fahrenheit, with a density altitude of 1,800 feet. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.