What was found
UNUSUAL VIBRATION & NOISE UNDER MID GALLEY DECREASED WHEN FLAPS EXTENDED. ACFT WAS CLEAN CONFIGURATION WHEN VIB STARTED. INSPECTED ACFT IAW AMM 05-51-38, NO DEFECTS NOTED ALSO INSPECTED AIR CONDITION BATTERY, NO DEFECTS NOTED AND INSPECTED FWD CARGO RECIRCULATION FAN AND DUCTING NO DEFECTS NOTED, NO DEFECTS FOUND FROM MID GALLEY CHILLER OVEN. OK FOR SERVICE.