As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THROUGH 5000', RECEIVED A LT ENGINE OIL LEVEL LOW MESSAGE. CONFIRMED WITH IDICATOR AT 22 PSI. OIL INCREASED SLIGHTLY TO 33-36, THEN RAPIDLY DROPPED TO 0 PSI. PERFORMED ENGINE SHUTDOWN AND RETURNED TO DEPARTURE. ON THE GROUND SAW SOME OIL ON THE LOWER THRUST REVERSER BUCKET AND SOME ON THE LOWER EXHAUST.