Cases involving individuals who have been injured in crashes and collisions involving helicopters. A Helicopter Accident is an occurrence associated with the operation of an aircraft which takes place between the time any person boards the helicopter with the intention of flight and all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or structural failure and/or the aircraft is missing or is completely inaccessible.
Richvale (also, Richland, Silbys Switch, Silsby) is a small farming community (estimated population 250) in Butte County, California, USA, south of Chico and west of Oroville. The primary crop grown in the area surrounding Richvale is rice, irrigated from the Oroville Dam on the Feather River. Several farmers in the area are known for organic farming. Richvale is located at 39° 29' 38" North, 121° 44' 41" West, 108 feet (33 m) above sea level. The ZIP Code is 95974. The community is inside area code 530.