B757-200
Flight Crew Last 90 Days 60; Flight Crew Total 15000; Flight Crew Type 4000
Confusion; Training / Qualification; Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; Flight Crew FLC complied w / Automation / Advisory; General Declared Emergency
Manuals; Aircraft; Procedure
Initial problem was left hydraulic pump failure. Secured per QRH and noticed left hydraulic quantity was 1.30. Approximately 10 minutes later we received L HYD SYS Pressure EICAS. Left quantity was rapidly approaching zero. Performed QRH actions; considered options and decided to continue to our filed destination. Informed ATC and declared an emergency. QRH worked well but we found ourselves consulting the Flight Manual for additional info. Questioned the correct checklist as it said: 'Loss of HYD SYS PRESSURE; L only' (probably not verbatim). We wanted to make sure the checklist addressed the loss of the left system and not the left system remaining.
A B757 EICAS alerted left hydraulic pump failure followed later by left hydraulic system pressure at which time hydraulic quantity was approaching zero so an emergency was declared and the QRH followed but the procedure's name confused the crew.