As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT JET OVERHEAT FAIL CAUTION MESSAGE ILLUMINATED IN FLIGHT, IAW QRH TESTED FIRE DETECTION SYS. TESTED NORMAL. INSPECTED SENSING ELEMENTS AND COMPLETED THE OPS TEST OF THE FIRE/OVERHEAT DETECTION SYSTEM. NO DEFECTS FOUND. DONE IAW AMM 26-11-00 AND 26-11-04.