What was found
WHILE IN THE PATTERN DOING LANDINGS. THE ENGINE QUIT WHEN THE POWER WAS REDUCED ON BASE LEG TO LAND. AN UNEVENTFUL LANDING WAS MADE, AND AFTER CLIMBING OUT OF AIRCRAFT, FUEL WAS COMING OUT OF THE COWLING. UPON FURTHER INVESTIGATION FOUND 1 OF THE FUEL BOWL FLOATS TO BE .7500 FULL OF FUEL AND THE OTHER WAS .2500 FULL. CAUSING THE FLOAT TO SINK AND CAUSING THE FUEL AIR MIXTURE TO BE TOO RICH AT REDUCED POWER SETTINGS. CAUSING THE ENGINE TO FLOOD OUT AND QUIT ON THE APPROACH TO LAND. (K)