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B737-800 flight crew experiences loss of 'a' system hydraulic pressure during climb out. The QRH is consulted and the crew elects to return to the departure airport due to the flight having an over water segment. The aircraft had just been released by maintenance after a similar incident two days prior.
| Attributes | |
| ACN | 1069880 |
| Time | |
| Date | 201302 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| 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 Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
During climbout through FL260 we got a master caution and hydraulic lights. Number 1 hydraulic engine driven pump low pressure light was illuminated and system a hydraulic quantity was decreasing. QRH procedure was followed and we turned off the number 1 engine driven hydraulic pump. This was a repeat event from the previous aircraft flight and had been down for the last 2 days for maintenance. The previous crew experienced a loss of hydraulic quantity down to 20% remaining. We decided not to continue the flight over water and diverted back to the departure airport. ATC was very helpful while we dealt with the checklist and company communications. On post flight I noted hydraulic fluid on the bottom of the engine cowling.
Original NASA ASRS Text
Title: B737-800 flight crew experiences loss of 'A' System Hydraulic pressure during climb out. The QRH is consulted and the crew elects to return to the departure airport due to the flight having an over water segment. The aircraft had just been released by Maintenance after a similar incident two days prior.
Narrative: During climbout through FL260 we got a Master Caution and HYD Lights. Number 1 HYD engine driven pump Low Pressure light was illuminated and System A HYD quantity was decreasing. QRH procedure was followed and we turned off the Number 1 Engine driven HYD pump. This was a repeat event from the previous aircraft flight and had been down for the last 2 days for maintenance. The previous crew experienced a loss of HYD quantity down to 20% remaining. We decided not to continue the flight over water and diverted back to the departure airport. ATC was very helpful while we dealt with the checklist and company communications. On post flight I noted hydraulic fluid on the bottom of the engine cowling.
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.