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B757 a hydraulic system failed in flight. The QRH was completed; flight descended to FL280 for the yaw dampener restriction and; before landing; an emergency was declared.
| Attributes | |
| ACN | 1047690 |
| Time | |
| Date | 201211 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic System |
| Person 1 | |
| Function | Pilot Not Flying Flight Engineer / Second Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
About halfway on the flight we had a total loss of a hydraulics system. The elevator low pressure light came on and followed immediately by the rudder low pressure. The captain saw his lights on the front panel also. The a system pressure gauge and quantity dropped to zero immediately. We ran the stabilizer followed by the QRH procedures for hydraulic leak or loss and closed the fluid shutoff switches. We descended to FL280 for yaw damper limitations. I attempted several times to contact dispatch using satcom without success. They somehow saw we were attempting them to call and contacted us. I was able to give the basic info before we lost satcom again. We had several short contacts with them before landing. Reaching our destination; I used the alternate flap system to deploy the flaps and leading edge devices and then manually cranked the gear. We declared an emergency with approach and had an uneventful landing. Maintenance pinned the gear and we were towed to the ramp. All checklists and QRH procedures were accomplished as per company SOP.
Original NASA ASRS Text
Title: B757 A Hydraulic system failed in flight. The QRH was completed; flight descended to FL280 for the Yaw Dampener restriction and; before landing; an emergency was declared.
Narrative: About halfway on the flight we had a total loss of A Hydraulics System. The Elevator Low Pressure light came on and followed immediately by the Rudder Low Pressure. The Captain saw his lights on the front panel also. The A System Pressure gauge and quantity dropped to zero immediately. We ran the stabilizer followed by the QRH procedures for Hydraulic Leak or Loss and closed the fluid shutoff switches. We descended to FL280 for yaw damper limitations. I attempted several times to contact Dispatch using SATCOM without success. They somehow saw we were attempting them to call and contacted us. I was able to give the basic info before we lost SATCOM again. We had several short contacts with them before landing. Reaching our destination; I used the alternate flap system to deploy the flaps and leading edge devices and then manually cranked the gear. We declared an emergency with Approach and had an uneventful landing. Maintenance pinned the gear and we were towed to the ramp. All checklists and QRH procedures were accomplished as per Company SOP.
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.