What was found
(CAN) AFTER T/O, SMOKE AND UNUSUAL SOUND COMING FROM L2 AREA. HAZE REPORTED IN THE CABIN. FLT RETURNED TO AIRPORT. ELECTRICAL ODOR WAS COMING FROM THE L2/R2 AREA WITH HAZE VISIBLE AT 5 DIFFERENT TIMES. IT WOULD APPEAR AND THEN DISAPPEAR. AREA INSPECTED AND FOUND MID-GALLEY CHILLER DUCT CLAMP ADRIFT, CAUSING UNUSUAL SOUND (S513) AND THE PROJECTOR 7DG (B-CLASS) OVERTEMP LIGHT ON. FOUND COOLING FAN MELTED. CONNECTOR PLUG REMOVED. NEW CHILLER CLAMP INSTALLED. PROJECTOR REPLACED. (TC NR 20070905009)