As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK FOR WHEEL WELL FIRE INDICATION IN FLIGHT ALL CHECKLIST COMPLIED WITH DEF M261369. INSPECTED TIRES, BRAKES, WHEEL ASSEMBLIES & ALL 3 WHEEL WELLS FOR FOR INDICATION OF FIRE. NO EVIDENCE OF FIRE OR OVERHEAT WAS FOUND REPLACED OVERHEAT DETECTION UNIT OPS CKS OK. THIS CLEARS M261369.