As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT SERVICE THE FAN CIRCUIT BREAKER WAS OFF. FANS WERE REPLACED IN ACCORDANCE WITH MM 21-50-03 AND SMOKE ODOR WAS DETECTED ON PASSENGER CABIN. AIRCRAFT WAS VENTILED AND WATER SEPARATOR COVERS WERE REPLACED. AFTER, AIR CONDITIONING SYSTEM WAS WORKING CORRECT.