Fatal aviation accident: CESSNA 310I near HESPERIA (1989-09-17)
Probable cause: THE NON-INSTRUMENT RATED PILOT CONTINUED VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND MISJUDGED HIS ALTITUDE ABOVE THE TERRAIN. CONTRIBUTING FACTORS WERE: THE PILOT'S LACK OF INSTRUMENT EXPERIENCE, PRESSURE INDUCED BY HIS WIFE (THE PASSENGER) TO TAKE THE FLIGHT, DARK NIGHT, WEATHER CONDITIONS, AND MOUNTAINOUS TERRAIN.