NTSB Identification: SEA07CA099.
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Accident occurred Saturday, April 07, 2007 in San Martin, CA
Probable Cause Approval Date: 06/27/2007
Aircraft: Barnett MA-5 Charger, registration: N20HD
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot reported that he entered the pattern on left base for landing. During the turn from base to final approach, the aircraft was low so the pilot added power, however, the engine did not respond. The pilot realized that he would not make the runway and chose an open field for an off airport landing. During the landing roll, the pilot intentionally ground looped the aircraft to avoid a collision with a fence. The aircraft sustained substantial damage to the right landing gear attach fitting and longeron as well as the right wing tip. After the aircraft was recovered from the field and taken to the airport, the engine was started and found to run without anomaly on the main fuel tank. The pilot reported that after the accident he pulled up the weather current at the time of the accident and compared it to the probable carburetor icing chart, he noted that the temperature and dew point fell into the range of serious icing at glide power. The nearest weather reporting facility indicated a temperature of 70 degrees F. and a dew point of 55 degrees F.

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

Carburetor icing conditions which resulted in a loss of engine power during the base turn to final approach. The pilot's inadequate preflight planning/preparation for the flight was a factor.

Full narrative available

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