As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAD - CREW REPORTED ELECTRICAL BURNING SMELL IN CABIN, CREW ISOLATED PROBLEM TO RIGHT RECIRC FAN. WHEN SWITCHED OFF SMELL DISSIPATED. FLIGHT LANDED MAD WITHOUT INCIDENT. REPLACED RIGHT RECIRCULATION FAN. SYSTEM GROUND CHECK NORMAL OPERATION.