As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - CREW REPORTED LEFT ENGINE OIL BYPASS LIGHT ILLUMINATED THEN 15 MINUTES LATER HAD UNCOMMANDED SHUT DOWN (SINGLE ENGINE TIME 80 MINS). EMERGENCY DECLARED FLIGHT LANDED LAX WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT ENGINE AT LAX ON 04/23/2012. SYSTEM GROUND CHECK NORMAL OPERATION.