CHRISTEN INDUSTRIES INC PITTS S-2B near Dalton, OH — 2013-07-16

Probable cause

A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.

NTSB narrative

The pilot was performing aerobatic maneuvers when the engine stopped producing power. He was unable to restart the engine and made a forced landing to a grass runway. The pilot landed the airplane half-way down the runway, but he was unable to stop it before it overran the runway and struck a utility pole. A postaccident test run of the engine and examinations of the engine and airplane did not reveal any preaccident malfunctions or failures that would have precluded normal operation.

Analysis

Primary failure mode

Engine power loss

First missed decision gate

Pilot could have chosen not to perform aerobatics under current conditions.

NTSB coding

• Loss of engine power (total) · Maneuvering-aerobatics

Evidence available

• 2 docket documents

Docket documents2

• Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form
• FAA Inspector's Statementinterview

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