NTSB Identification: ERA11LA242
14 CFR Part 91: General Aviation
Accident occurred Monday, April 11, 2011 in Loxley, AL
Probable Cause Approval Date: 11/17/2011
Aircraft: WSK-MIELEC AN-2, registration: N122AN
Injuries: 3 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

According to the pilot, during cruise flight the engine began to run rough and lose power. He heard a loud metallic sound; the engine vibrated violently and then lost power. He performed a forced landing to a farm field, and the airplane nosed over in the soft terrain, resulting in substantial damage to the wings. A postaccident inspection revealed that the crankshaft would not rotate. An internal inspection of the cylinders and spark plugs did not reveal a reason for the power loss. The oil system was examined and there were large amounts of metal particles in the oil. Due to a lack of suitable equipment and facilities, further disassembly of the engine was not attempted.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

A loss of engine power due to internal failure.

Full narrative available

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