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A B767-300's EICAS alerted lt hydraulic qty low after level off in cruise. An emergency was declared and the aircraft returned to the departure airport.
| Attributes | |
| ACN | 918942 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic Main System |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After level off; observed steady decreasing left hydraulic quantity. Discussed situation with maintenance and dispatch via satcom. Declared emergency; dumped fuel and diverted to our departure airport. Due to dump system design we still were over maximum landing weight after dump. Made required log book entries; reports to dispatch.
Original NASA ASRS Text
Title: A B767-300's EICAS alerted LT HYD QTY LOW after level off in cruise. An emergency was declared and the aircraft returned to the departure airport.
Narrative: After level off; observed steady decreasing left hydraulic quantity. Discussed situation with Maintenance and Dispatch via SATCOM. Declared emergency; dumped fuel and diverted to our departure airport. Due to dump system design we still were over maximum landing weight after dump. Made required log book entries; reports to Dispatch.
Data retrieved from NASA's ASRS site as of April 2012 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.