What was found
AIRCRAFT 5036, FAS REPORT A KEROSENE LIKE SMELL IN THE AFT GALLEY AREA. TURNING PACK 2 OFF IN FLIGHT HELPED TO DISSIPATE THE ODOR FOR MOST OF THE FLIGHT. AT 20 MINS TO TOD THERE WAS ANOTHER REPORT OF THE ODOR RETURNING, APU ON AT SHUTDOWN ALSO RESULTED IN ODOR. CORRECTIVE ACTION: ON W/A FOUND LEAKING LEFT CENTER TANK FUEL SUMP LEAKING INTO HYD BAY AT PN 195BB. FUEL NOTED ON BOTTOM OF FUSELAGE. RESECURED SUMP VALVE, NO LEAKS NOTED. RAN APU AND ENGINES, PACKS AND ISOLATED EACH, RAN AT MULITPLE POWER SETING, NO SMELLS. (LP 8541078 - AIRCRAFT WAS GROUNDED)