NTSB Identification: CEN11LA076
14 CFR Part 91: General Aviation
Accident occurred Wednesday, November 17, 2010 in Roanoke, TX
Probable Cause Approval Date: 08/11/2011
Aircraft: BEECH 35-33, registration: N5481
Injuries: 1 Uninjured.

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

While on base leg of the traffic pattern at the destination airport, the airplane lost engine power. The pilot completed the emergency checklist but was unable to restore engine power. During the forced landing near the airport, the airplane collided with several trees resulting in substantial damage. An engine test run was conducted while the motor was still attached to the airframe, utilizing an external fuel source attached to the left side fuel system. The engine started and accelerated to 2,400 rpm. Dark black smoke was observed from the exhaust system and the engine ran rough at full mixture. The engine ran smooth when leaned, and the leak rate on the metering unit return to the fuel pump was higher than normal. The exact cause of the loss of engine power could not be determined.

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

A loss of engine power for undetermined reasons.

Full narrative available

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