As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE THERE WAS A STRONG ELECTRICAL SMELL COMING FROM THE INSTRUMENT PANEL. THE SMELL ONLY LASTED A FEW SECONDS. INSPECTED AIRCRAFT FOR ELECTRICAL SMELL. NO SMELL NOTED. COULD NOT DUPLICATE. RAN APU AND CYCLED WINDSHIELD HEAT. NO DEFECTS NOTED IAW EMB 145AMM 34-22-00.