Hahn R-W22 Tiger Moth Rep near Symrna, TN — 2009-09-01

Probable cause

A loss of engine power for undetermined reasons.

NTSB narrative

The accident flight was the airplane’s first flight with a newly installed engine. The pilot executed a normal takeoff and, during initial climbout, the engine began to overheat. Subsequently, engine power diminished and the pilot made a forced landing into the trees at the end of the runway. Examination of the airplane by a Federal Aviation Administration inspector revealed no evidence of preimpact mechanical malfunction. Due to the extensive fire damage of the automobile engine, the reason for the loss of engine power could not be determined.

Analysis

Primary failure mode

Engine power loss

First missed decision gate

Pilot could have aborted the flight after engine overheating was noticed.

NTSB coding

• Loss of engine power (partial) · Initial climb
• Loss of Thrust on Takeoff

Evidence available

• 4 docket documents

Docket documents4

• Other Pertinent Forms and Reports-FAA Inspector Statement 2form
• Other Pertinent Forms and Reports-FAA statementform
• Other Pertinent Forms and Reports-Record of Conversation pilotform
• Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form

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