As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW DECLARED AN EMERGENCY WHEN CREW NOTICED ELECTRICAL SMELL IN THE CABIN DURING DESCENT. SUPPLEMENTAL DATA UPDATE THE RECIRCULATION FAN BEARING FAILED, WHICH CAUSED AN ELECTRICAL SMELL IN THE PASSENGER CABIN AND RESULTED IN CIRCUIT BREAKER C884 POPPING. THE RECIRCULATION FAN WAS REPLACED AND SYSTEM OPERATION WAS NORMAL.