As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT DECK FAN RUMBLES WITH OCCASIONAL BURNED ODOR, SWITCHED OFF AND CIRCUIT BREAKER PULLED. PERFORMED SMOKE INSPECTION REFERENCE AMM 5-51-00, NO DEFECTS NOTED. REMOVED AND REPLACED RECIRCULATING FAN IAW AMM 21-25-06, OPS CHECKED NORMAL IAW 21-25-06.