As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURN ODOR IN CABIN, EARLY IN GROUND EXTRACT FAN WAS REPORTED MAKING LOUD NOISE. ITEM DEFERRED ON MEL 21-06 AUTH 090137D-C. REMOVED AND REPLACED AIR EXTRACTION FAN IAW JIC 21-23-21. THIS ACTION CLEARS MEL 21-06. PERFORMED FLIGHT COMPARTMENT AND CABIN AIR DISTRIBUTION OPERATIONAL CHECK. NO BURN ODOR NOTICED IAW 21-22-00.