As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CREW SELECTED THE RECIRCULATING FANS ON AND HEARD A BUZZING SOUND FROM THE MID CABIN AND A FAINT ELECTRICAL BURNING ODOR WAS PRESENT THE CREW FOUND THE RT RECIRCULATING FAN CIRCUIT BREAKER TRIPPED. MAINTENANCE MELD THE RECIRCULATING FAN, AND REPLACEMENT IS SCHEDULED.