B777 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Inflight Shutdown; Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft
Approximately 150 miles from [the destination airport]; at or near [the top of descent]; EICAS indicated lowering oil quantity on the left engine; but no EICAS caution or warning. Monitored. Quantity dropped to zero. Contacted Dispatch and Maintenance Control referencing the impending shutdown. Oil pressure then slowly decreased. We declared an emergency with ATC. Determined that [the destination airport] to be more suitable than [another diversion airport] due to the 3-to-1 glide profile to [the destination airport]; while [the diversion airport] would require circling to descend with possible weather avoidance in the area. We obtained priority handling direct to [the destination airport]. EICAS then displayed Low Oil Press caution. Shut down engine per ECL checklist. Briefed Lead Flight Attendant. Uneventful landing at [the destination airport].
On descent into [the destination airport] oil quantity dropped to zero and oil pressure dropped low. EICAS low oil pressure appeared. ECL was performed. Left engine was shutdown. All subjects were discussed about situation: call to Dispatch; consideration of airport choice; discussion with purser about situation; talk among all crewmembers on deck about the situation; declaring an emergency with ATC; request for expedited handling and straight into [the destination airport]; and announcement for passengers. Uneventful approach; landing and taxi in.
Following the indication of low engine oil quantity on descent; the pilots of a B777 performed the in-flight shutdown procedure and continued to the original destination airport.