Light Transport; Low Wing; 2 Turbojet Eng
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Troubleshooting; Workload
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Diverted
Aircraft
Approximately 35 minutes into the flight heard a moderate boom sound accompanied by the Autothrottles disengaging; a red A/T flashing on the PFD; a red Master Warming and erratic vibrations. EICAS indications were sporadic as was left engine output. It appeared as though the left engine was attempting to restart itself however was not producing enough thrust to maintain altitude. Initiated a descent and made the decision to divert to ZZZ. Shut the left engine down using the appropriate checklist and received vectors for descent from ATC to land on [Runway] XXR at ZZZ. Cleared the runway and taxied into the FBO without further incident.
Left Engine Failure. Commanded shutdown inflight. Cruising at FL450 a bang was heard followed by vibrations. Engine CAS messages were intermittent.. A decrease in L engine power was evident. Engine checklist for shutdown employed to secure L engine.. Vibrations ceased. After requesting a lower altitude we [requested priority handling] with ZZZ ATC and given vectors to land at ZZZ.
Part 135 Jet Pilot Crew reported an engine failure at cruise altitude on their twin engine aircraft.