As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 ENGINE OIL DECREASED TO ZERO QUANTITY AND OIL PRESSURE FLUCTUATED WHILE EN ROUTE FROM EWR TO DFW. THE AIRCRAFT WAS DIVERTED TO ATL WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAKAGE AT THE CSD DRIVE PAD MAGNETIC SEAL. THE SEAL WAS REMOVED AND REPLACED IAW MM 72-60-00. LEAK AND OPERATIONAL CHECKS WERE GOOD DURING ENGINE RUN.