As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 4836 - DISC - AT CRUISE ALTITUDE OF FL 190', LEFT ENGINE OIL PRESSURE FLUCTUATED 15 TO 20 PSI. OIL PRESSURE DROPPED APPROX 40 PSI FOR AN UNKNOWN DURATION. CREW SHUT DOWN ENGINE AND DECLARED EMERGENCY AND DIVERTED INTO PIT. REMOVED AND REPLACED LEFT ENGINE ASSY IAW W/C 4903. (M)