NTSB Identification: ATL04LA175.
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Accident occurred Thursday, September 09, 2004 in Kennesaw, GA
Probable Cause Approval Date: 10/27/2005
Aircraft: Piper PA-32-260, registration: N45100
Injuries: 2 Serious.

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

The pilot stated that after takeoff throttle adjustment showed no problems and the airplane's engine continued to run fine and the airplane maintained a good climb rate. However, when the pilot reduced the propeller RPM to 2400, the manifold pressure dropped dramatically to 20-inches. Advancing the propeller lever to the full forward position, and advancing the throttle to the full forward position had no effect on the lost manifold pressure. The pilot completed the emergency procedured as the airplane descended into a stand of trees. The post-accident examination of the airframe and engine assemblies found no discrepancies.

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

The loss of engine power for undetermined reasons.

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