As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT TAIL PIPE HOT MASTER WARNING LIGHT CAME ON OUR INITIAL CLIMB, PERFORMED MEMORY ITEMS AND QRH CHECK LIST WARNING LIGHT WENT OUT. AIR RETURN TO MEM. MAINTENANCE RAN AC FOR 30 MINUTES COULD NOT DUPLICATE TAIL PIPE HOT LIGHT. OPS CHECK GOOD