Accident Overview
A Cessna aircraft was involved in an accident while maneuvering for landing after performing atmospheric and noise testing in conjunction with a Boeing 707 hush kit. The flight was intended to test meteorological conditions and noise levels. The aircraft took off heading southeast and climbed to approximately 800 feet above ground level (AGL).
Flight Maneuvers
After reaching 800 feet AGL, the Cessna began executing descending right-hand turns over an unidentified object on the ground. The aircraft descended to about 50 feet AGL before climbing back to approximately 100 feet AGL. At that point, the pilot attempted to align the aircraft with the runway. The Cessna, still heading southeast, crossed over the runway at an angle and then turned left to align with the runway.
Loss of Control
During the left-hand turn, the aircraft stalled and entered a left-hand spin. The Cessna completed between half and three-quarters of a revolution before contacting the ground. Examination of the wreckage revealed no evidence of mechanical failures or malfunctions. The aircraft was being operated in an overweight condition at the time of the accident.
Investigation Findings
The investigation determined that the pilot lost control and collided with the runway while maneuvering for landing. No other contributing factors were identified in the source material.