As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE OIL PRESSURE CAUTION & LT ENGINE OIL PRESSURE EICAS ILLUMINATED IN FLIGHT. LT OIL PRESSURE 5 UNITS LESS THAN RT. LT OIL QTY 2 QUARTS LESS THAN RT ENGINE OPERATED LT ENGINE AT RESERVE THRUST TO LANDING. NOTED ENGINE OIL PRESSURE NORMAL. REPLACED LOW OIL PRESSURE SWITCH IAW MM 79-33-01-42-010-R00. RAN CHECK, OK, REF TASK 71-00-0-700. OK FOR CONTINUE IPC 79-33-01-00-005 (REF FIM 79-32-03).