As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, NR 2 ENGINE OIL BYPASS LIGHT ILLUMINATED. ENGINE THRUST WAS REDUCED BUT LIGHT PERSISTED. THE NR 2 ENGINE WAS SHUT DOWN. AIRCRAFT DIVERTED TO IAD AND PERFORMED AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE OIL FILTER AND CHIP DETECTORS, NO CONTAMINATES WERE FOUND. ENGINE OIL DIFFERENTIAL PRESSURE SWITCH WAS REPLACED.