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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.
| Attributes | |
| ACN | 997215 |
| Time | |
| Date | 201203 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic System |
| Person 1 | |
| Function | Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 60 Flight Crew Total 15000 Flight Crew Type 4000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Initial problem was left hydraulic pump failure. Secured per QRH and noticed left hydraulic quantity was 1.30. Approximately 10 minutes later we received left hydraulic system 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 hydraulic system pressure; left only' (probably not verbatim). We wanted to make sure the checklist addressed the loss of the left system and not the left system remaining.
Original NASA ASRS Text
Title: 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.
Narrative: 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.
Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.