As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL PRESSURE FLUXUATED BETWEEN 50-60 PSI DURING CRUISE FLIGHT. REDUCE POWER, PRESSURE STABILIZES AT 50 PSI. SWAPPED GAUGES, NO FIX. FOUND BROKEN WIRE AT OIL PRESSURE TRANSMITTER, REPLACED PINS IN OIL PSI TRANSMITTER C/P. RAN ACFT, OPS CHECKED OK IAW 20-45-05.