What was found
FLT 1017, BOS - JFK. INFLIGHT ADDRESS OF INTERMITTENT ODOR IN CABIN, SULFUR OR SEWAGE ODOR MOSTLY IN AFT GALLEY. ALSO SMELLED AT ENTRY DOOR UPON ARRIVAL. PERFORMED A LEAK CHECK OF LAV SYSTEM COMPONENTS IAW AMP 38-00-00. USING TOILET DEODARANT CONCENTRATE SP-97000. NO LEAKS FOUND. REMOVED MULTIPLE CARGO PANELS AND PERFORMED GVI OF PIPES, NO LEAKS NOTED. AFTER SP-9700 SAT NOTICED THE SCENT IN TANK AREA IN AFT CARGO.