B737-800
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Flight Crew Landed As Precaution; Flight Crew Returned To Departure Airport
Aircraft; Procedure
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.
During climbout through FL260 got the Master Caution and HYD 6 pack light. Found Number 1 Engine driven hydraulic pump 'pressure low' light on. QRH procedure was complied with and Engine Pump turned to OFF. This was a repeat write-up and the plane had been in maintenance for 2 days to be fixed. Previous crew had a loss of A quantity down to 20% so I elected to return rather than continue over water to destination.
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.