<< >> NASA ASRS Report 975642, October 2011

An a system hydraulic pump failure at FL200 during climb resulted in a return to departure station; emergency declaration and overweight landing.

Attributes
ACN	975642
Time
Date	201110
Place
Locale Reference	ZOA.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Climb
Component
Aircraft Component	Hydraulic System Pump
Person 1
Function	Captain
Experience	Flight Crew Last 90 Days 162
Person 2
Function	First Officer
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

During climb; passing approximately 20;000 ft; we received a master caution; hydraulic; and low press light on the a system engine driven hydraulic pump. We ran the appropriate checklist and; after conferring with dispatch; decided to return to [departure station]. We were heavy weight (approximately 13;700 pounds); so we declared an emergency. We performed an uneventful landing and had the fire crash truck check us for hot brakes and fluids. After checking braking cooling; we taxied to the gate.

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Original NASA ASRS Text

Title: An A system hydraulic pump failure at FL200 during climb resulted in a return to departure station; emergency declaration and overweight landing.

Narrative: During climb; passing approximately 20;000 FT; we received a master caution; HYD; and LOW PRESS light on the A System Engine driven hydraulic pump. We ran the appropriate checklist and; after conferring with Dispatch; decided to return to [departure station]. We were heavy weight (approximately 13;700 LBS); so we declared an emergency. We performed an uneventful landing and had the fire crash truck check us for hot brakes and fluids. After checking braking cooling; we taxied to the gate.

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.