What was found
FLIGHT 9456 - EN ROUTE LGA-CVG RECEIVED A LEFT ENGINE WARNING MESSAGE, CREW DECLARED AN EMERGENCY AND PERFORMED AN INFLIGHT SHUTDOWN OF THE LEFT ENGINE. FLIGHT LANDED WITHOUT INCIDENT. REPLACED THE LEFT ENGINE OIL PUMP CHECK VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 9456 - EN ROUTE LGA-CVG RECEIVED A LEFT ENGINE WARNING MESSAGE, CREW DECLARED AN EMERGENCY AND PERFORMED AN INFLIGHT SHUTDOWN OF THE LEFT ENGINE. FLIGHT LANDED WITHOUT INCIDENT. REPLACED THE LEFT ENGINE OIL PUMP CHECK VALVE.