<< >> NASA ASRS Report 843537, July 2009

B767 flight crew experienced the failure of all three center hydraulic pumps in rapid succession. An emergency was declared and crew returned to departure airport for over weight landing.

Attributes
ACN	843537
Time
Date	200907
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Hydraulic System Pump
Person 1
Function	Captain Pilot Not Flying
Person 2
Function	Relief Pilot Pilot Not Flying
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Experienced a loss of all 3 pumps in the center system. All pump failures occurred in the following way very quickly: #2 electric: overheat then pressure fail; #1 electric: overheat then pressure fail; center demand pump overheat then press fail. We returned to departure station; declared emergency and landed overweight towed to the gate.

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Original NASA ASRS Text

Title: B767 flight crew experienced the failure of all three center hydraulic pumps in rapid succession. An emergency was declared and crew returned to departure airport for over weight landing.

Narrative: Experienced a loss of all 3 pumps in the center system. All pump failures occurred in the following way very quickly: #2 electric: overheat then pressure fail; #1 electric: overheat then pressure fail; center demand pump overheat then press fail. We returned to departure station; declared emergency and landed overweight towed 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.