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After their left main engine driven hydraulic pump failed; draining the fluid and causing the electrical standby pump to be unusable; a B757-200 flight crew completed the associated checklists; declared an emergency and; utilizing alternate systems to extend the gear and flaps; landed successfully at their destination where they were towed to the gate.
| Attributes | |
| ACN | 1105352 |
| Time | |
| Date | 201307 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic System Pump |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 180 Flight Crew Total 18000 Flight Crew Type 3200 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Near the top of climb the EICAS message hydraulic engine pump left appeared along with the associated low pressure light in the pump switch. We referenced the QRH which instructed us to place the switch in the off position. At this time we notified maintenance control via ACARS and sent the associated maintenance code. About an hour later we observed the left hydraulic quantity decreasing at a fairly rapid rate. We again referenced the QRH; this time for the hydraulic qty-left and were directed to turn off the associated pumps; in this case it was the remaining electric pump. We again contacted maintenance and during our conversation we observed the left hydraulic quantity decrease to zero. We discussed this with maintenance and dispatch and decided to continue to our destination. We asked dispatch to have crash fire rescue equipment stand by [at our destination]; briefed the flight attendants and informed them that we anticipated a normal landing although nose wheel steering might not be available after landing. Upon arrival we configured early for landing and were required to use alternate flap extension and alternate gear extension and then landed without incident. We cleared the runway; had the aircraft inspected and were then towed to the gate. Maintenance determined that the left engine driven hydraulic pump had failed and had caused the fluid to leak out of the system.
Original NASA ASRS Text
Title: After their left main engine driven hydraulic pump failed; draining the fluid and causing the electrical standby pump to be unusable; a B757-200 flight crew completed the associated checklists; declared an emergency and; utilizing alternate systems to extend the gear and flaps; landed successfully at their destination where they were towed to the gate.
Narrative: Near the top of climb the EICAS message HYD ENG PUMP L appeared along with the associated low pressure light in the pump switch. We referenced the QRH which instructed us to place the switch in the off position. At this time we notified Maintenance Control via ACARS and sent the associated maintenance code. About an hour later we observed the left hydraulic quantity decreasing at a fairly rapid rate. We again referenced the QRH; this time for the HYD QTY-L and were directed to turn off the associated pumps; in this case it was the remaining electric pump. We again contacted Maintenance and during our conversation we observed the left hydraulic quantity decrease to zero. We discussed this with Maintenance and Dispatch and decided to continue to our destination. We asked Dispatch to have CFR stand by [at our destination]; briefed the flight attendants and informed them that we anticipated a normal landing although nose wheel steering might not be available after landing. Upon arrival we configured early for landing and were required to use alternate flap extension and alternate gear extension and then landed without incident. We cleared the runway; had the aircraft inspected and were then towed to the gate. Maintenance determined that the Left Engine Driven Hydraulic Pump had failed and had caused the fluid to leak out of the system.
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.