Event Overview
A pilot reported that during a flight conducted in instrument meteorological conditions (IMC), the aircraft experienced an electrical problem. The pilot stated that only the altimeter, airspeed indicator, and magnetic compass remained operational. As a result, he became spatially disoriented, and the aircraft subsequently entered several dives and at least one spin.
Descent and Emergency Landing
The aircraft descended below the cloud layer into a valley where the pilot was able to maintain visual references. The pilot then performed an emergency landing on rough, uphill terrain. The aircraft sustained damage during the landing. The pilot noted that the surrounding hills were covered with clouds.
Inoperative Systems
According to the pilot, while operating in instrument flight rules (IFR) conditions, the vacuum pump, turn and bank indicator, attitude indicator, and stall warning system became inoperative or malfunctioned.