As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THERE APPEARED TO BE A BURNING COIL ODOR AS IF A HAIR DRYER OVERHEATED. TROUBLESHOT IAW FIM 21-22-00-810-806. FOUND A LAVATORY EXHAUST FAN TO BE FROZEN. FOUND B1-007306 LAVATORY FAN/LOW FAN SPEED ON MDC CURRENT SERVICE MESSAGES. PERFORMED TROUBLESHOOTING IAW FIM 21-23-93-810-802. FOUND LAV EXHAUST FAN TO BE INOPERATIVE. REMOVED AND REPLACED THE LAVATORY EXHAUST FAN IAW AMM 21-23-93. OPS CHECKED GOOD.