As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL ODOR AND LIGHT BLUE/GREY HAZE WAS DETECTED DURING THE BOARDING PROCCESS. IT APPEARS TO BE COMING FROM ROW 20 TO 11 FROM THE EMERGENCY EXIT ROW, FORWARD ON THE ACFT RT SIDE. INSPECTED ACFT FOR DISCREPANT ODOR C/W ODOR/SMOKE TASK CARD NO DEFECTS NOTED. ACFT FOUND OK FOR SERVICE.