What was found
UPON TAKEOFF FROM BOS, THE NR 1 ENG TEMP EXCEEDED 125 DEGREES. THE CREW SECURED THE ENGINE AND RETURNED TO FIELD. LANDING WAS WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE OIL TEMP SYSTEM. REMOVED AND REPLACED THE OIL COOLER DIVERTER VALVE, OIL TEMP BULB AND REPAIRED A BROKEN WIRE AT THE NR 1 ENGINE OIL TEMP BULB ELECTRICAL CONNECTOR. GROUND RAN ENGINE. OPERATIONAL AND LEAK CHECKS PROVED SATISFACTORY. A/C RETURNED TO SERVICE. (M)