As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THREE EVENTS OF ONE MINUTE DURATION OF ELECRICAL ODOR THRU COCKPIT AND CABIN NO SMOKE. UNABLE TO LOCATE OR IDENTIFY SOURCE, ON LANDING OF ELECRICAL ODOR. RECIRCULATION FAN INOPERATIVE LIGHT ON. FOUND LEFT RECIRCULATION FAN CIRCUIT BREAKER TRIPPED ON P36 PANEL. REPLACED LEFT RECIRCULATION FAN PER MM. OPS TESTED BOTH LEFT AND RIGHT RECIRCULATION FANS PER MM. RAN BOTH PACKS WITH ENGINES AND APU, NO ODOR EVIDENT.