What was found
AFTER TAKEOFF, RECEIVED LEVEL 2 " ENG 1, OIL TEMP HI" ALERT C/W QRH & RETARDED THROTTLE. TEMP PEAKED AT 168 & DROPPED BELOW 163 IN ABOUT 6-7 MIN. IT STABILIZED APPROX 10 MINS BEFORE DECREASING TO 110 DEGREES MATCHING NR 2 & NR 3 OIL TEMPS. DURING LEVEL FLT & ARRIVAL TEMP REMAINED MATCHED WITH NR 2 & NR 3 WHILE OPERATING NORMALLY. VISUALLY INSPECTED AIR/OIL HEAT EXCHANGER & VALVE ASSY & NO ABNORMAL FOUND. R & R NR 1 ENG FUEL OIL HEAT EXCHANGER, FUEL OIL COOLER BYPASS VALVE AND NR 3 BEARING OIL TEMP THERMOCOUPLE PER REF MM 73-14-01-4 AND 79-32-02-4. RAN NR 1 ENGINE PER JRH. ALL TESTS & CHECKS PASSED, OIL TEMPS STABILIZED ALL PARAMETERS NORMAL. LEAK CHECKED GOOD.