As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPORT OF ELECTRICAL BURNING ODOR COMING FROM VENTS, COACH AND FIRST CLASS, LASTING 1 MIN. ODOR DISSIPATED WHEN DESELECTED RT RECIRCULATION FAN SWITCH. RT RECIRCULATION FAN DEFERRED IAW MEL. REPLACED RT RECIRC FAN, ALSO RESET TRIPPED CIRCUIT BREAKER J5 ON P37 PNL FOR RT FAN. FAN CHECKS GOOD. BREAKER STAYS SET AND NO BURN ODOR NOTED IN CABIN.