NTSB Identification: CHI86FA111.
The docket is stored on NTSB microfiche number 31875.
Accident occurred Thursday, December 12, 1985 in EVANSTON, IL
Aircraft: PIPER PA-46-310P, registration: N4380A
Injuries: 2 Uninjured.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
THE AIRCRAFT WAS ON CLIMBOUT ON AN IFR FLIGHT PLAN IN VMC CONDITIONS WHEN THE ENGINE FAILED. A RESTART WAS ATTEMPTED AND THE ENGINE RAN FOR A MINUTE OR LESS. SUBSEQUENT ATTEMPTS WERE UNSUCCESSFUL. THE AIRCRAFT WAS OVER LAKE MICHIGAN AND HAD INSUFFICIENT ALTITUDE TO REACH THE SHORELINE. A SUCCESSFUL WATER LANDING WAS MADE AND THE OCCUPANTS WERE PICKED UP BY THE COAST GUARD UNHARMED. SUBSEQUENT EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT HAD FRACTURED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ENGINE ASSEMBLY,CRANKSHAFT..FATIGUE
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ENGINE ASSEMBLY,CRANKSHAFT..FAILURE,TOTAL
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