As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDU - NUMBER 2 ENGINE OIL BYPASS WARNING CAME ON DURING CLIMBOUT WITH CLIMB POWER. RETURNED TO RDU AND LANDED WITHOUT INCIDENT. REPLACED OIL SUPPLY AND SCAVENGE FILTER. RAN ENGINE AT TAKEOFF SPEED FOR THREE MINUTES. ALL INDICATIONS NORMAL. ENGINEERING REQUESTED DOWNLOAD OF FLIGHT DATA RECORDER FOR EVALUATION. SYSTEM GROUND CHECKED NORMAL OPERATION.