As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4905 - MIA-PID - PILOT SHUTDOWN NR 3 ENGINE ON APPROACH TO PID DUE TO LOW OIL PRESSUE (BELOW RED LINE, WARNING LIGHT CAME ON). TROUBLESHOOTING INDICATED O-RING IN OIL FILLER NECK TO BE UNSERVICEABLE. REPLACED O-RING AND OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE. (M)