What was found
CREW REPORTS ON DECENT F/A AND DEAD HEADING CREW NOTICED A SMOKY HAZE IN BACK OF A/C AROUND PASSENGER ROW 16. CREW CYCLED THE PACKS AND RECIRCULATION FAN AND NOTICED THAT THE SMOKE HAZE SUBSIDED, WHEN PACKS AND RECIRCULATION FAN WERE TURNED BACK ON THE ODOR AND HAZE CAME BACK. THE SMELL WAS MORE OF AN ELECTRICAL LIKE ODOR. THE A/C LANDED WITHOUT INCIDENT AND WAS MET WITH THE FIRE DEPT. THE FIRE DEPARTMENT PERFORMED A THERMAL SCAN REVEALING NO EVIDENCE OF FIRE OR HEAT SOURCE ON THE GROUND. OCM ACCOMPLISHED A GCI OF THE RAM AIR INLETS, HEAT EXCHANGERS, AND RECIRCULATION DUCTS NO DEFECTS NOTED. RAN APU FOR OVER AN HOUR, WITH PACKS AND RECIRCULATION FAN RUNNING, COULD NOT DUPLICATE FAULT AT THIS TIME.