Flight Summary
On October 29, a pilot obtained a weather briefing from a Flight Service Station at 1615 and filed a VFR flight plan from San Jose to Taft, California. The briefing indicated that VFR conditions would be present to Taft, but that thunderstorms were expected to develop along the route as evening progressed. The aircraft arrived in Taft at approximately 1745.
Departure and Witness Observation
The aircraft departed Taft at approximately 2330 for the return flight to San Jose. A witness observed the aircraft flying erratically over the Diablo Mountain Range. The witness reported watching the aircraft's lights as they impacted the top of a mountain.
Additional Information
No further details about the aircraft, occupants, or outcome are provided in the source. The accident occurred during night hours, and the flight was conducted under visual flight rules (VFR). The weather briefing had warned of deteriorating conditions along the route later in the evening.