As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LT ENGINE OIL PRESSURE WARNING MESSAGE AND OIL PRESSURE OSCILLATION. CREW RAN QRH, INTENTIONALLY SHUTDOWN LT ENGINE, DECLARED AN EMERGENCY AND DIVERTED. MAINTENANCE INSPECTED, R & R LT ENGINE AGB CARBON SEAL FOR ENGINE DRIVEN PUMP AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.