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B737 flight crew reported the hydraulic system B low pressure alerted followed by the standby pump low pressure and eventually the hydraulic quantity alerted.
| Attributes | |
| ACN | 1468084 |
| Time | |
| Date | 201707 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic Main System |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 12000 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
During the climb segment of flight; we received an engine hydraulic pump low pressure light system B. A short time later we received an additional master caution to include the electric standby pump system B. System B hydraulic pressure indicated zero. The quantity also indicated zero. We [advised ATC]; completed all associated checklist and returned to the departure airport for an uneventful landing.possibly the system B engine driven hydraulic pump failed resulting in the total loss of system B hydraulic fluid.
Original NASA ASRS Text
Title: B737 flight crew reported the hydraulic system B low pressure alerted followed by the standby pump low pressure and eventually the hydraulic quantity alerted.
Narrative: During the climb segment of flight; we received an engine hydraulic pump low pressure light system B. A short time later we received an additional master caution to include the electric standby pump system B. System B hydraulic pressure indicated zero. The quantity also indicated zero. We [advised ATC]; completed all associated checklist and returned to the departure airport for an uneventful landing.Possibly the system B engine driven hydraulic pump failed resulting in the total loss of system B hydraulic fluid.
Data retrieved from NASA's ASRS site 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.