Primary finding
Probable cause
The noncertificated pilot’s decision to take off through a large helicopter’s rotor wash, which resulted in his inability to gain altitude during takeoff.
Investigator assessment
Analysis narrative
The noncertificated pilot reported that the airplane departed the runway and that, during the initial climb, it could not gain altitude. He attempted to return to the runway, but the airplane landed hard in an orchard. The pilot later reported that, before takeoff, a large helicopter was hovering close to the runway and that he believed the his airplane "entered…[the helicopter's] rotor wash and lost lift." The airplane sustained substantial damage to the wings. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Source record
Factual narrative
The noncertificated pilot in an unregistered light sport airplane, reported that he departed the runway during the initial takeoff climb and could not gain altitude. He attempted to return to the runway and landed hard in an orchard. The pilot later reported that prior to takeoff, a large helicopter was hovering close to the runway. "I believe I entered his rotor wash and lost lift." The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The airplane sustained substantial damage to the wings. The uncertificated pilot did not submit the NTSB Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report.