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 HIGH STAGE LIGHT ILLUMINATED DURING FLIGHT. EMERGENCY DECLARED FLIGHT RETURNED LAX LANDED WITHOUT INCIDENT. PLACARD LEFT ENGINE HIGH PRESSURE SHUT-OFF VALVE PER MEL 36-2. REPLACED VALVE AT LAX ON 02/08/2011. SYSTEM GROUND CHECK NORMAL OPERATION.