As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE ELEC SMELL IN COCKPIT & CABIN WAS VERY STRONG. EMER DECLARED. LANDED & GND EVACUATION. SMELLED LIKE OZONE. TROUBLESHOOTING YIELDED INCONCLUSIVE RESULTS FOR DEFINITIVE REASON FOR SMELL, COULD NOT DUPLICATE SMELL. REFERENCE ITEM 1 OF AML PAGE 3737800 FOR FCF TO DETERMINE SMELL NO LONGER EXISTS. RECONNECTED MAIN BATTERIES IAW TASK 24-36-01-400-801-A. NO OTHER DEFECTS NOTED.