As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT, ON DESCENT, THE LEFT ENGINE OIL PRESSURE INDICATED 16PSI. THE MASTER WARNING OIL PRESS WARN DID NOT ILLUMINATE. COMPLETED THE LOW OIL PRESSURE INDICATION CHECKLIST (RETARDED THE LEFT THROTTLE), THE OIL PRESSURE RETURNED TO NORMAL OIL PRESSURE TRANSDUCER REPLACED.