Crash of a Piper PA-46-310P Malibu in the Gulf of Mexico

The airplane was en route at 14,000 feet msl when the manifold pressure dropped from 30 to 18 inches. Eleven minutes later the oil light came 'on'. The airplane continued under partial power at an airspeed of 90 knots, while descending at 100 to 300 feet per minute (fpm). By 9,500 feet msl the engine oil pressure dropped to zero. The pilot shut down the engine and made a forced landing in the Gulf of Mexico near a ship. The airplane remained afloat for 5 to 7 minutes. During this time, the emergency exit was opened, all occupants donned a life vest, exited, and boarded the life raft, which the pilot had deployed. All were rescued by personnel from the ship. The airplane was not recovered; therefore, the cause of the power loss was not determined.