As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT, NR 1 NACELLE TEMPERATURE CLIMBED TO 4 UNITS ON BOTH A AND B LOOPS THEN DROPPED BACK TO NORMAL AT CRUISE ALTITUDE. INSPECTED ENGINE COWLING, PYLON AND ENGINE DUCTING, NO DISCREPANCY NOTED. PERFORMED ENGINE RUN TO TAKEOFF POWER, FOUND NACELLE TEMP NORMAL.