As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE OIL PRESSURE WARNING MSG AT CRUISE. WARNING PERSISTED AT POWER SETTINGS ABOVE IDLE. CW QRH DIVERTED TO PHL. ENGINE REMAINED AT IDLE DURING THE 40 MINUTE FLIGHT TO PHL. LOWEST OIL PRESSURE SHOWN WAS 24 PSI. REMOVED RT LUBE SCAVENGE PUMP AND FOUND SCREENS COKED UP CAUSING RESTRICTING. CLEANED SCREEN IAW EO8/016/479 AND REINSTALLED PUMP IAW AMM 79-21-01 OPS AND LEAK CHECK GOOD.