What was found
ON WALK AROUND FOUND LARGE AREA OF BELLY SWEAT JUST BELOW AFT CARGO PIT. OPEN PANELS ON AFT PIT WALL AND FOUND BROWN LAV WATER LEVEL WITH PIT PANEL FLANGE. UNSURE WHAT OR WHERE THE LEAK IS. GREY WATER LEAKING FROM VENT. FOUND CLEANOUT AT AFT PIT BULKHEAD RT OF CENTERLINE. NEED TO SNAKE TO DRAIN MASK. CLEANED OUT LINE FROM CLEAN OUT TO DRAIN MAST. FOUND PIECE OF RUBBER HOSE RIGHT AT 90 DEGREE ANGLE OF DRAIN MAST, OPS CHECKED GOOD.