Narrative:

Aircraft was on ILS approach to 7L vhhh in visual conditions. First officer was hand flying. Configuration was 180 KTS and flaps 20 until 7 miles; then 160 KTS until 4 miles as per instructions of approach control. Glideslope intercept was at 2000 AGL and gear and flaps were put into final configuration at about 1 dot above glideslope. Aircraft was configured with gear down and landing flaps (gear down; flaps 25). At 1200 AGL got EICAS message 'doors'. Checked gear and saw it was down. Went to checklist and completed items that were just info. At this time got an EICAS and low pressure on the overhead for one of the center hydraulic pumps. We were proceeding to that checklist as more lights associated with center hydraulic system came on. Checked hydraulic synoptic and found center system had failed with an apparent leak. We were now just above 500 feet. Asked the three other crewmembers did they see any reason not to continue the approach and just land with the understanding that the steering system may have an issue. All agreed the best course of action was to continue and land. Vhhh has a very elaborate missed approach with large hills surrounding the airfield. Miss approach would had to of been accomplished with the gear down. One of the relief pilots brought up there may be an issue with spoilers. Runway was dry and long. First officer landed and used reverse thrust in a symmetrical manner to bring aircraft to a stop. At this time; as we were rolling out; notified tower we may have a steering issue where we may not be able to leave the runway due to hydraulic leak. Tiller for steering became unresponsive as we slowed. We were able to exit the runway by using the rudder pedals. We stopped on a taxiway and shut down engines and completed all other checklist and shut down all center system hydraulic pumps. There was no evacuation. During the approach there was no time to declare an emergency. On the taxiway airport authorities came and inspected the aircraft. We waited for a tug and were towed to a hardstand. Upon exiting the aircraft; maintenance had already found that a steel braided flexible hydraulic line had burst in the nose wheel area. Dispatch and the flight ops manager were contacted and informed in a timely manner.

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Original NASA ASRS Text

Title: B777 flight crew experiences the loss of the Center Hydraulic System on final approach with the aircraft fully configured for landing. The crew elects to continue the approach to landing and is then towed to a hard stand due to the loss of nosewheel steering.

Narrative: Aircraft was on ILS approach to 7L VHHH in visual conditions. First Officer was hand flying. Configuration was 180 KTS and flaps 20 until 7 miles; then 160 KTS until 4 miles as per instructions of approach control. Glideslope intercept was at 2000 AGL and gear and flaps were put into final configuration at about 1 dot above glideslope. Aircraft was configured with gear down and landing flaps (Gear Down; Flaps 25). At 1200 AGL got EICAS message 'DOORS'. Checked gear and saw it was down. Went to checklist and completed items that were just info. At this time got an EICAS and low pressure on the overhead for one of the center hydraulic pumps. We were proceeding to that checklist as more lights associated with center hydraulic system came on. Checked hydraulic synoptic and found center system had failed with an apparent leak. We were now just above 500 feet. Asked the three other crewmembers did they see any reason not to continue the approach and just land with the understanding that the steering system may have an issue. All agreed the best course of action was to continue and land. VHHH has a very elaborate missed approach with large hills surrounding the airfield. Miss approach would had to of been accomplished with the gear down. One of the relief pilots brought up there may be an issue with spoilers. Runway was dry and long. First Officer landed and used reverse thrust in a symmetrical manner to bring aircraft to a stop. At this time; as we were rolling out; notified tower we may have a steering issue where we may not be able to leave the runway due to hydraulic leak. Tiller for steering became unresponsive as we slowed. We were able to exit the runway by using the rudder pedals. We stopped on a taxiway and shut down engines and completed all other checklist and shut down all center system hydraulic pumps. There was no evacuation. During the approach there was no time to declare an emergency. On the taxiway airport authorities came and inspected the aircraft. We waited for a tug and were towed to a hardstand. Upon exiting the aircraft; Maintenance had already found that a steel braided flexible hydraulic line had burst in the nose wheel area. Dispatch and the Flight Ops Manager were contacted and informed in a timely manner.

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.