What happened
N6539L, identified as a Cessna 152, and N1172H, a Piper PA-32R-300, collided with each other approximately two miles west of the Fullerton Municipal Airport. The incident occurred at an altitude of approximately 1,200 feet above ground level.
Both pilots reported that they were operating under visual flight rules during clear skies on a bright night. They stated there were no restrictions to visibility at the time of the event. Prior to departure, both pilots attempted blind transmissions on the tower frequency but could not recall hearing any other aircraft on that frequency during taxi and takeoff operations.
The investigation
The source text does not provide specific details regarding the mechanical examination or investigative findings beyond the pilot reports and collision location.