Cessna U206G N8777Q

Summary

On 18 October 2007 at about 17:40 local time, a Cessna U206G registered N8777Q was involved in an accident near Lebanon, Maine, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

18 October 2007 at 17:40

Classification

Accident

Location

Lebanon, Maine, United States

Coordinates

43.4036, -70.9006

Aircraft

Cessna U206G

Registration

N8777Q

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Ticoderoga → Sanford

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

DFW08LA019

Nobody was injured.

Failure of the crankshaft resulting in the total loss of engine power.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

While en route to his destination the private pilot began experiencing a rough running engine with a subsequent total loss of engine power. Unable to make the nearest airfield the pilot elected to land in a farm field. During landing roll the nosewheel contacted a burrow resulting in the separation of the nosewheel assembly and a loss of control. The airplane came to rest in the upright position and the pilot was able to egress without assistance. During the engine examination a sub-surface fatigue fracture was discovered on the number 5 crankshaft cheek resulting in the failure of the crankshaft and loss of engine power. The engine was last overhauled approximately 17 years prior to the accident. The engine manufacturer stated that the engine should be overhauled every 12 years. On January 23, 1998, the Federal Aviation Administration released guidance for the replacement of the crankshaft at the next overhaul or the next time the crankshaft was removed. At the time of the accident, compliance with the service bulletin and airworthiness was not accomplished, nor required.

Quoted verbatim from the NTSB record.