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B757-200 flight crew experiences low hydraulic quantity in the left system. Follow qrc checklist and proceed to destination.
| Attributes | |
| ACN | 804494 |
| Time | |
| Date | 200809 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : rwf.vor |
| State Reference | MN |
| Altitude | msl single value : 37000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 600 |
| ASRS Report | 804494 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 250 flight time total : 22000 flight time type : 10000 |
| ASRS Report | 804846 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : eicas |
| Resolutory Action | aircraft : equipment problem dissipated flight crew : landed in emergency condition |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
During cruise flight; left hydraulic quantity EICAS came up. Left system was down to .46. Complied with checklist; shut off left system hydraulic pumps; and quantity stopped decreasing. On arrival turned left pumps back on to configure; and quantity decreased to about .15. We were able to configure normally; and taxi to the gate. Supplemental information from acn 804846: we contacted dispatch which in turn contacted maintenance. We conferred with maintenance and we agreed that there was most likely a leak and there was nothing else that could be done. Dispatch indicated he would inform tower of our situation and they would have the emergency equipment waiting and a tow should we need it.
Original NASA ASRS Text
Title: B757-200 FLT CREW EXPERIENCES LOW HYDRAULIC QUANTITY IN THE LEFT SYSTEM. FOLLOW QRC CHECKLIST AND PROCEED TO DESTINATION.
Narrative: DURING CRUISE FLT; L HYD QUANTITY EICAS CAME UP. L SYS WAS DOWN TO .46. COMPLIED WITH CHKLIST; SHUT OFF L SYS HYD PUMPS; AND QUANTITY STOPPED DECREASING. ON ARR TURNED L PUMPS BACK ON TO CONFIGURE; AND QUANTITY DECREASED TO ABOUT .15. WE WERE ABLE TO CONFIGURE NORMALLY; AND TAXI TO THE GATE. SUPPLEMENTAL INFO FROM ACN 804846: WE CONTACTED DISPATCH WHICH IN TURN CONTACTED MAINT. WE CONFERRED WITH MAINT AND WE AGREED THAT THERE WAS MOST LIKELY A LEAK AND THERE WAS NOTHING ELSE THAT COULD BE DONE. DISPATCH INDICATED HE WOULD INFORM TWR OF OUR SITUATION AND THEY WOULD HAVE THE EMER EQUIP WAITING AND A TOW SHOULD WE NEED IT.
Data retrieved from NASA's ASRS site as of May 2009 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.