As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A/C CLIMBOUT AT 23,000 FT, NR 4 ENGINE NACELLE TEMPERATURE WAS INDICATING 8 UNITS. ACCOMPLISHED PROCEDURE FOR ABNORMAL NACELLE TEMPERATURE RETURNED TO NORMAL. NACELLE TEMPERATURE FLUCTUATED WITH THROTTLE MOVEMENT. REMOVED AND REPLACED PRESSURE REGULATING VALVE, HIGH STAGE VALVE AND PRESSURE RELIEF VALVE PRECAUTIONARY.