What was found
FLOATS AND FUEL CELLS. RECEIVED NEW MFG LEFT WING FUEL CELL, MFG DATE 3/03. INSTALLED IN AIRCRAFT, FILLED WITH 1000LL AVGAS, DISCOVERED FUEL LEAK, RETURNED FUEL CELL TO MFG, FFC DISCOVERED MFG LT REAR BOTTOM CHANNEL LEAK DEFECT. FFC REPAIRED DEFECT AND RETURNED FUEL CELL.