As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4936 - RECEIVED WING OVERHEAT WARNING WITH A/I SELECTED ON. LEFT WING INDICATES OVERHEAT. RETURNED TO AIRPORT AND LANDED WITHOUT INCIDENT. QRH STANDBY DID NOT CLEAR MESSAGE. TESTED STDBY OVERHEAT AND CONT (NORM) SENSOR. RESTORED MISSING RTV INSULATION TO SENSORS. RAN A/C AT POWER, TESTING WING A/15 MINUTES WITH NO FAULTS. RETURNED TO SERVICE.