As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CRUISE RECIRCULATION FAN STATUS MESSAGE ILLUMINATED AND WAS ACCOMPANIED BY ELECTRICAL SMELL IN CABIN. BOTH FANS WERE TURNED OFF ELECTRICAL SMELL WENT AWAY. MAINT MSG 21-24400 RECIR FAN TEST FAILED FOUND CB A21 ON P110 POPPED WOULD NOT RESET FAN3013 NS LHR. DEFERRED TO MIC PER MEL 21-3 AUTH 6-972DC-C FWD UPPER FAN INOPERATIVE MPM 21-3 ACCOMP SDR SENT.