As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 15 MINUTES AFTER DEPARTURE WING BODY OVERHEAT LIGHT ILLUMINATED. RETURNED TO FIELD. CREW REPORTED LEFT WING BODY OVERHEAT LIGHT ON AFTER DEPARTURE. TURNED LEFT PACK OFF, LEFT BLEED OFF AND CLOSED APU ISOLATION VALVE. LEFT WING BODY OVERHEAT LIGHT WENT OUT IN APPROXIMATELY 1 MINUTE. MAINTENANCE CHECKED ALL LOOPS AND FOUND THEM TO BE WITHIN LIMITS. REPLACED COMPARTMENT OVERHEAT CONTROL UNIT AND TESTED THE SYSTEM.