What was found
MID LAV OVER FLOW BLACK GOING DOWN ISLE. RETURNING TO EWR FOUND LAV C SINK CLOGGED. UNCLOGGED MID LAV SINK USING COMPRESSED AIR GUN. UNCLOGGED AND WATER DRAINS NORMALLY FROM THE DRAIN MAST. VERIFIED NO FURTHER LEAKS HAPPENED INSIDE FWD AND AFT CARGO COMPARTENTS REF EC/RA 2011-01000. CARPET OUTSIDE MID LAV WAS DEEP CLEANED AND WET SHOP VACUUMED. LEAK WAS MAINTAINED INSIDE LAV AND MINIMAL SPILL CAME OUTSIDE LAV. PERFORMED ALL REQUIRED CHECKS NOTED IN EC/RA 2011-01000. REMOVED PANELS IN AFT CARGO AND FOUND NO EVIDENCE OF LEAKS THAT DRIPPED FURTHER DOWN BELOW THE FLOOR AROUND THE LAVATORY. LAVATORY AREA HAS BEEN FULLY CLEANED. OK FOR SVC.