As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG OIL PRESS LIGHT CAME ON. RETARDED THROTTLE. LIGHT STAYED ON SHUTDOWN ENG AS PER ABNORMAL CHECKLIST. WINDMILLING OIL PRESS 24 PSI TIME 2144Z. FLIGHT DIVERTED TO SPIM WITHOUT FURTHER INCIDENT. CHECKED MAIN OIL FILTER AND SWITCHES. FOUND OIL DIFFERENTIAL PRESS SW FAILED PLACED ON DMI PER MEL FOR FLT TO KMIA.