As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL ODOR IN COCKPIT ON 3 SEPARATE OCASSIONS, IT WAS ALSO SMELLED THROUGHOUT CABIN LASTING ONLY A FEW MINUTES THEN DISSIPATING. INSTRUCTED F/A TO TURN OFF CHILLERS AT FIRST OCCURRENCE AND IT CLEARED THEN IT RETURNED 2 MORE TIMES. FOUND LT RECIRC FAN TO BE AT FAULT (NOISY). REPLACED SAME.