As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 290, ENGINE LT SURGE APPEARED ON EAD. LOST OIL PRESSURE ON LEFT ENGINE; LOUD BANG PRECEEDED THESE TWO ALERTS FOLLOWED QRH PROCEDURES AND SHUT DOWN ENGINE. REMOVED AND REPLACED NR 11 ENGINE REF TASK CARD 603, OPS CHECK GOOD OK FOR SERVICE.