As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL TEMP GUAGE PEGGED OUT HIGH DURING CLIMB AND CRUISE. PULLING THE THROTTLE TO IDLE MADE THE GUAGE FLUCTUATE BETWEEN THE YELLOW AND RED RADIAL. REMOVED AND REPLACED OIL TEMP BULB AND TEMP IND, NO HELP. REINSTALLED ORIGIND. DURING INSP, FOUND BROKEN GROUNDING WIRE. REPAIRED WIRE, RAN NR 2 ENG PER PFHB AND OIL TEMP IND NORMAL.