aviation accident: PIPER PA-30 near Big Bear City (2011-01-30)
Probable cause: The pilot’s failure to maintain the minimum single-engine control speed while on final approach for landing. Contributing to the accident was the pilot's decision to fly with a known deficiency in one engine and a loss of power in that engine for reasons that could not be determined because postaccident examination did not reveal any mechanical failures or malfunctions that would have precluded normal operation.