NTSB Identification: DEN05CA020.
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Accident occurred Friday, November 05, 2004 in Santa Rosa, NM
Probable Cause Approval Date: 01/24/2005
Aircraft: Mooney M20E, registration: N2695W
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.
While preparing to depart, the pilot stated that the airplane's "battery seemed weak" and noted that the ammeter was not charging or discharging. The pilot had the battery charged for 1/2 hour and elected to fly to another airport to have a mechanic examine the airplane. While en route, he noticed "the engine was running rough." The pilot checked both magnetos and noted the left magneto selection resulted in a rough engine. The fuel pressure was also low; however, the pilot felt he would be okay until arriving at his destination. The pilot stated that both magnetos began to run rough. He was unable to maintain altitude and landed on a highway. While maneuvering the airplane to avoid oncoming traffic, the airplane struck a road sign causing substantial damage. Examination of the engine revealed that the P-lead had broken off of the right magneto. The P-lead had been rubbing against a bracket aft of the P-lead, prior to its failure. FAA inspector who examined the airplane stated that an annual inspection should have discovered this situation.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: Inadequate maintenance inspection which failed to detect the separation of the right P-lead, resulting in a loss of engine power. Full narrative available
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