What happened
Witnesses observed the aircraft maneuvering erratically near the airport and anticipated an accident. The first approach to runway 25 was described as erratic with minimal apparent control, including an abrupt pull-up, stall, bounce, and go-around in a left pattern at 300 feet above ground level. The second base leg involved a very shallow, flat, or skidding turn before the aircraft disappeared behind trees.
Findings
The pilot had a history of disequilibrium and had intermittently been taking Dyazide for hypertension of unknown doses. All of the pilot's physicians and surgeons declined to provide information. The pilot had not obtained a medical certificate since December 28, 1977.