As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 3962 THE CREW REPORTED NR 1 ENGINE OIL PRESSURE WARNING CONTINUOUSLY IN FLIGHT, PRESSURE NORMAL. AIRCRAFT RETURNED TO CLEVELAND AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE OIL TANK PRESSURE VALVE. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT WAS RETURNED TO SERVICE.