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A B777-200 flight crew declared an emergency and returned to their departure airport after suffering the loss of fluid and pressure to the right hydraulic system.
| Attributes | |
| ACN | 1093094 |
| Time | |
| Date | 201306 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic System |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Just after passing ZZZ the EICAS message 'hydraulic qty low right' came on and we checked the hydraulic quantity and the right hydraulic quantity was '0'. Just as we were checking the quantity the EICAS message 'hydraulic press pri right' came on. We ran and completed the QRH checklist for both EICAS messages. At approximately 100-150 miles east of ZZZ we declared an emergency with ATC and requested a turn back direct to [our departure airport]. We dumped approximately 50;000 pounds of fuel starting approximately 100 miles east of ZZZ at FL320 starting at approximately XA20Z. We executed an overweight landing at [our departure airport] at approximately 519;000 pounds with a sink rate of approximately 100 FPM and the landing was normal.
Original NASA ASRS Text
Title: A B777-200 flight crew declared an emergency and returned to their departure airport after suffering the loss of fluid and pressure to the right hydraulic system.
Narrative: Just after passing ZZZ the EICAS message 'HYD QTY LOW R' came on and we checked the hydraulic quantity and the right hydraulic quantity was '0'. Just as we were checking the quantity the EICAS message 'HYD PRESS PRI R' came on. We ran and completed the QRH checklist for both EICAS messages. At approximately 100-150 miles east of ZZZ we declared an emergency with ATC and requested a turn back direct to [our departure airport]. We dumped approximately 50;000 LBS of fuel starting approximately 100 miles east of ZZZ at FL320 starting at approximately XA20Z. We executed an overweight landing at [our departure airport] at approximately 519;000 LBS with a sink rate of approximately 100 FPM and the landing was normal.
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.