As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LOW OIL PRESSURE ON THE LEFT ENGINE. AIRCRAFT DIVERTED AND LANDED SAFELY. MAINTENANCE TROUBLESHOT AND REPLACED THE LEFT ENGINE AGB CARBON SEALS MATING RINGS. OPERATIONAL CHECKS WERE PERFORMED USING THE AIRCRAFT MAINTENANCE MANUALS. THE AIRCRAFT RELEASED FOR SERVICE.