As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, NR 2 RT ENGINE OIL TEMP BEGAN TO FLUCTUATE FROM NORMAL CRUISE TEMP OF 116C UP TO 230C. STAYED ABOVE 160C FOR MORE THAN 9 MINUTES BUT CONTINUED TO FLUCTUATE BETWEEN NORMAL & A HIGH OF 230 C. FINALLY TEMP STAYED ABOVE 160 C FOR MORE THAN 4 MINUTES. REMOVED CONNECTOR & NO SIGNS OF DAMAGE OR CORROSION. RECONNECTED CONNECTOR & SHOOK WIRES & NO TEMP CHANGE. NR 2 ENGINE OIL TEMP ON THE GROUND IS 30 DEGREES LESS THAN NR 1 ENG. CONNECTOR REMOVED FROM TEMP SENSOR.