Helicopter fatalities in Alameda County

What: Schweizer 269C helicopter owned by Quadrus Inc., a catering and conference center in Menlo Park
Where: Sheridan Road between Fremont and Sunol
When: 12:32 a.m
Who: fight instructor and student were killed
Why: Aircraft hit 60,000-volt power transmission lines and caught fire. Cloudy weather conditions but not raining.

After hitting the electrical wires, power lines were knocked into traffic lanes, and the burning helicopter ignited a 5 acre grass fire.