As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3699, PHL-ISP RETURNED TO FIELD IN PHL DUE TO THE NR 2 ENGINE OIL PRESSURE GOING TO ZERO DURING CLIMBOUT. THE CREW SHUTDOWN THE NR 2 ENGINE AS PER PROCEDURES. NO WARNING LIGHT ASSOCIATED WITH LOSS OF INDICATION. AIRCRAFT LANDED WITH OUT INCIDENT. MAINTENANCE CONFIRMED TO BE AN INDICATION PROBLEM. REMOVED AND REPLACED THE OIL PRESSURE INDICATOR AND TRANSMITTER. OPERATIONAL CHECK WAS GOOD. AIRCRAFT WAS RETURNED TO SERVICE.