Accident
The pilot initiated descent to Santa Ana-John Wayne Airport at night under poor weather conditions, with limited visibility due to rain showers. During the final approach, the aircraft was too low, struck the ground, and crashed in flames in Tustin, a few miles from the runway threshold. The aircraft was destroyed, and all three occupants were killed.
Investigation
Investigators determined the accident sequence and contributing factors. The official findings cited improper operation on the part of the pilot, who descended below the published minimum altitude. Contributing factors reported include low ceiling, rain, high obstructions, and the glide slope receiver being reported inoperative since one week prior to the accident.
Probable Cause
The probable cause of the accident was the pilot's improper operation by descending below the published minimum altitude. Contributing factors were low ceiling, rain, high obstructions, and an inoperative glide slope receiver.