At 1735hrs Box 8122 was transmitted for a vehicle fire in the 8500 block of Fairfax St. While enroute communications advised the foam engine that a neighbor sees something on fire next to a house and the flames are starting to get bigger. Foam Engine 501 arrived on scene and found a boat well involved with minor extension. Foam Engine 501 quickly extinguished the fire and went ready at 1907hrs. The cause of the fire is still unknown.