What was found
FLIGHT 527, PVD TO PHL - ELECTRICAL ODOR IS EVIDENT IN COCKPIT AND BOTH GALLEY'S, WEAKER IN FORWARD GALLEY. THE ODOR IS PRESENT INFLIGHT (PER FLIGHT ATTENDANT ROWS 4, 19, AND 20) AND ON THE GROUND. INSURE ODOR IS ASSOCIATED WITH EXTERNAL AIR START. MAINTENANCE INSPECTED A/C, RAN PACKS VIA START TRUCK. STARTED BOTH ENGINES ONE AT A TIME. NO ODOR DETECTED, A/C OK FOR SERVICE.