As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - FLT 731 LGW TO PHL. THE EQUIPMENT COOLING OVERHEAT LIGHT CAME ON IN FLIGHT, SIMULTANEOUS WITH ODOR IN CABIN AND COCKPIT. THE ODOR WENT AWAY WHEN CREW WENT TO ALTN ON ALTN EQUIPMENT COOLING SWITCH, FOLLOWING THE QRH PROCEDURE. REMOVED AND REPLACED EQUIPMENT COOLING FAN NR 1.