Narrative:

This airplane had a problem with the center hydraulic demand pump which led to the deferral of the hmg (hydraulic motor generator). There were 3 circuit breakers that needed to be pulled and safetied; as well as physically disabling the hmg in the wheel well. This was not accomplished by maintenance even though the [maintenance documentation] indicated that it was. While dealing with the additional problems of the nose wheel strut being completely compressed; and a 40;000 pound weight penalty; I neglected to double check the safetied cockpit circuit breakers. During cruise flight we noticed that the 3 cbs were not pulled; notified maintenance and pulled them with [maintenance] concurrence; wrapping a sticker around each. The flight attendants complained of a loud whining sound between rows 27 and 30. I went back to check. The sound was mechanical; like a pump (indeed the hmg had never been disabled). On approach I called for flaps one; allowing extra time for gear and flap extension. EICAS message flaps asymmetry appeared. The first officer and relief pilot began the checklist. I called for gear down. It took a long time and then we only had that main gear and not the nose gear. Performed a go-around and [advised ATC]. In addition to having the center hydraulic system light illuminated; both center hydraulic pump lights illuminated. Finally the nose gear came down and we had 3 green gear indications. The first officer and relief pilot performed the leading edge flaps checklist and we landed flaps 20 without incident.

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Original NASA ASRS Text

Title: B767 flight crew reported difficulty extending the landing gear and flaps related to an improperly handled hydraulic pump deferral at an international station.

Narrative: This airplane had a problem with the center hydraulic demand pump which led to the deferral of the HMG (Hydraulic Motor Generator). There were 3 circuit breakers that needed to be pulled and safetied; as well as physically disabling the HMG in the wheel well. This was not accomplished by maintenance even though the [maintenance documentation] indicated that it was. While dealing with the additional problems of the nose wheel strut being completely compressed; and a 40;000 pound weight penalty; I neglected to double check the safetied cockpit circuit breakers. During cruise flight we noticed that the 3 CBs were not pulled; notified maintenance and pulled them with [Maintenance] concurrence; wrapping a sticker around each. The flight attendants complained of a loud whining sound between rows 27 and 30. I went back to check. The sound was mechanical; like a pump (indeed the HMG had never been disabled). On approach I called for flaps one; allowing extra time for gear and flap extension. EICAS message flaps asymmetry appeared. The first officer and relief pilot began the checklist. I called for gear down. It took a long time and then we only had that main gear and not the nose gear. Performed a go-around and [advised ATC]. In addition to having the center hydraulic system light illuminated; both center hydraulic pump lights illuminated. Finally the nose gear came down and we had 3 green gear indications. The first officer and relief pilot performed the leading edge flaps checklist and we landed flaps 20 without incident.

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.