What was found
DURING CLIMBOUT THROUGH 10,000 FT, THE LT ENGINE OIL TEMP STARTED TO CLIMB RAPIDLY TO 165A C. PERFORMED QRH PROCEDURE AND RETURNED TO FIELD. OIL TEMP CAME BACK INTO NORMAL LIMITS ON DESCENT BUT REMAINED ON THE HIGH SIDE OF THE MARGIN. R & R LT ENGINE OIL LEVEL/OIL TEMPERATURE SENSOR, IAW AMM. OPS CHECK OF THE OIL INDICATING SYSTEM GOOD. LEAK CHECKED GOOD. RAN ENGINES ON GROUND NEAR TAKEOFF POWER FOR A TOTAL OF 10 MINTUES. NO FURTHER DEFECTS NOTED.