As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
1 HR INTO FLIGHT SELECTED ENGINE THEN WING A/I (FL310 .82M) ALMOST INMEDIATELY ENG 3 STRUT OVERHEAT LIGHT ILLUMINATED. NO CHANGE AFTER QRH PROCEDURES ACCOMPLISHED. NR 3 ENGINE SHUTDOWN AS PER QRH . LIGHT REMAINED ILLUMINATED FOR 5 MORE MINUTES, THEN EXTINGUISHED , NO OTHER PROBLEM NOTED. FOUND CLAMP MISPLACED AT ENGINE NACELLE ANTI-ICE DUCT AT FWD STUD WIND, REINSTALLED CLAMP PROPERLY, CKD OK NOW.