As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT HEARD AND FELT A LOUD THUMP AND SLIGHT LOSS OF POWER ON THE LEFT ENGINE. ABOUT 30 SECONDS LATER RECEIVED AN 'OIL' MAP AND AURAL WARNING. OIL PRESSURE WAS '0'. PERFORMED PRECAUTIONARY SHUTDOWN AND RETURNED TO SEA. REMOVED AND REPLACED THE LEFT ENGINE AS PER MM 71-00-00.