PALO ALTO, CA, USA
N714QA
CESSNA 150M
THE ACFT NOSED OVER IN A MARSH DURING A FORCED LANDING AFTER AN ENGINE FAILURE. THIS WAS A SOLO INSTRUCTIONAL FLT. THE PLT SAID HE WAS DESCENDING FOR A LANDING AT PALO ALTO WHEN THE ENGINE BEGAN TO 'LOSE POWER AND RUN ROUGH.' CARBURETOR HEAT DID NOT WORK AND WHEN THROTTLE WAS ADDED THE VIBRATION INCREASED. A FORCED LANDING WAS MADE NORTH OF THE ARPT. A POST ACCIDENT TEAR DOWN OF THE ENGINE REVEALED A FAILURE OF THE #1 CONNECTING ROD END CAP. THIS AND PARTS OF THE PISTON RING SECTIONS AND A CONNECTING ROD BEARING WERE FOUND IN THE OIL SUMP. #2 CYLINDER WAS FOUND BATTERED AND DENTED. #3 AND #4 CYLINDERS WERE NORMAL.
Source: NTSB Aviation Accident Database
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