What was found
LAF - FLT 4070 - CREW REPORTED SMELL OF CHLORINE AND SMOKE IN COCKPIT AND CAINB THERE FORE CREW DIVERTED INTO LAF AND DECLARED AN EMERGENCY LANDING IN LAF. CREW LANDED SAFELY. MAINTENANCE GROUND RAN A/C AND INSPECTED AV RACKS AND FOUND NO DEFECTS. COULD NOT DUPLICATE CHLORINE SMELL BUT DI DETECT ELECTRICAL SMOKE AND SMELL FROM NR 1 RECIRCULATION FAN, ISSUED MEL AND AIRCRAFT WAS RETURNED TO SERVICE. RAI'D NR 1 RECIRCULATION FAN IAW JIC 21-22-21 AND PERFORMED OPS CHECK SATISFACTORILY. CLEARED MEL AND RETURNED AIRCRAFT TO SERVICE. (M)