As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - CREW REPORTED STRONG ELECTRICAL SMELL IN COCKPIT AND AFT END OF CABIN. EMERGENCY DECLARED RETURNED ORD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED FORWARD AND AFT OVENS. SYSTEM GROUND CHECK NORMAL OPERATION.