As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED ODOR (ELECTRICAL/RUBBER) IN FIRST CLASS CABIN. BRIEFLY SMELLED IT IN FLIGHT DECK. CREW TURNED OFF CABIN FAN AS PRECAUTION AND ODOR WENT AWAY. MAINTENANCE FOUND CABIN RECIRCULATION FAN 14HG TO BE THE SOURCE OF THE ODOR AND REPLACED IT PER AMM 21-21-00. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS NOTED.