The pilot of a small plane escaped injury this afternoon after blustery conditions upset his craft and he was forced to make a crash landing on a street adjacent to Whiteman Airport in Pacoima. Neither the pilot, who was not identified, nor anyone on the ground was hurt, said Los Angeles Fire Department spokeswoman Margaret Stewart. The pilot of a small plane escaped injury this afternoon after blustery conditions upset his craft and he was forced to make a crash landing on a street adjacent to Whiteman Airport in Pacoima.