What was found
STRONG BURNING ODOR FELT THROUGH OUT THE CABIN AND COCKPIT. NO SIGN OF HEAT SOURCE NOR SMOKE WAS IDENTIFIED. OPENED ALL OVERHEAD BINS AND INSPECTED FOR BURNING ODOR ALL ELECTRICAL COMPONENTS IAW JIC 25-24-21. ALSO OPENED ACCESS DOORS TO ELECTRONIC RACKS AND INSPECTED FOR BURNING IAW JIC 25-14-12. NO BURNING SMELL WAS NOTICED AT THIS MOMENT ON THE ABOVE MENTIONED AREAS. FOUND RECIRCULATING FAN NR 2 MAKING A VERY LOUD NOISE AND WHEN SELECTED ON, A LIGHT BURNING WAS NOTICED. RECIRCULATING FAN PLACED ON MEL 21-3 AUTH NR 050108-C. ALSO PERFORMED ENGINE PUMP IAW JIC 72-00-00. ON 05-15-10 MEL 21-3 WAS CLEARED AT SJU: R & R NR 2 RECIRCULATING FAN IAW JIC 21-22-21-RAI-10000.