As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD - CREW REPORTED ELECTRICAL ODOR IN BOTH AFT LAVATORIES. EMERGENCY DECLARED FLIGHT RETURNED IAD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT LAVATORY SMOKE FAN THAT WAS DEFECTIVE. SYSTEM GROUND CHECK NORMAL OPERATION.