Pilot Debrief

WSK-MIELEC AN-2 near Loxley, AL — 2011-04-11

Final reportERA11LA242
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Date
2011-04-11
Location
Loxley, AL, USA
Aircraft
WSK-MIELEC AN-2
Registration
N122AN
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Cruise

Probable cause

A loss of engine power due to internal failure.

NTSB narrative

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.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have landed earlier when engine began to run rough.

NTSB coding

Evidence available

  • Photos
  • 6 docket documents
View NTSB final reportView NTSB docket

Docket documents6

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