SKWENTNA, AK, USA
N94505
CESSNA 152 II
FBO HAD BEEN EXPERIENCING DIFFICULTIES WITH SPARK PLUGS AND MAGNETOS IN THIS ACFT. THE PLT HAD FLOWN THIS ACFT BEFORE WITH RECURRENT ROUGH RUNNING AND DIMINISHED POWER SYMPTOMS. ENG BEGAN TO RUN ROUGH ON THIS FLT AND PLT LANDED ON A SAND BAR (MARKED FOR ACFT USE) TO CHECK IGNITION LEADS AND FUEL FOR CONTAMINATION. ON TAKEOFF, TOTAL POWER LOSS WAS EXPERIENCED AS THE ACFT REACHED ABOUT 2O FT AGL. PLT DITCHED THE ACFT IN THE RIVER. INVESTIGATION REVEALED THE MAGNETO BEARINGS WERE SEIZED. SERVICE BULLETIN RECOMMENDING REPLACEMENT OF BEARINGS HAD NOT BEEN COMPLIED WITH.
Source: NTSB Aviation Accident Database
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