As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT, NR 1 ENG OIL TEMP RUNNING AT 140 DEG FOR A STEADY 15 MIN, TEMP LEVELED AT 130 DEG. DID NOT SHUT ENG DOWN, FUEL HEAT RECYCLED OK AND DIVERTED DFW. FOUND FUEL HEAT VALVE LEAKING. REPLACED VALVE, RAN ENG LEAK AND OPERATION OK.