Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 21000
Aircraft Equipment Problem Less Severe
Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport
Aircraft; Human Factors
It was a normal takeoff. After the gear handle was selected to the up position; we heard an unusual noise; followed by an EICAS MSG 'HYD QTY LOW C.' After switching to departure control we got vectors. The aircraft PF (Pilot Flying) duties were transferred to the FO (First Officer). We started running the appropriate checklist. Eventually we got an additional EICAS MSG 'HYD PRESS SYS C.' That checklist was run; in addition to the non-routine Landing checklist and the Overweight Landing checklist. A call was made to the Flight Attendants to explain the situation; and a PA was made to the passengers to explain the situation. A message was sent to Dispatch via ACARS and a tug was requested. Coordination was accomplished with Approach and Tower. After accomplishing a landing assessment for our conditions knowing we had enough runway; even though we were overweight; we did not dump fuel. PF duties were transferred back to the Captain and a landing was made back at [departure airport]. After stopping on the runway; Tower requested we shut down all engines. The airport safety personnel accessed our plane. We were tugged to a hard stand.I understand there was a failure in one of the hydraulic lines.
Flight experienced center hydraulic failure upon gear retraction. After checklist procedures; the aircraft returned to land overweight. Improper crew coordination resulted in the lack of a logbook entry.
B777 flight crew reported returning to the departure airport after a HYD QTY LOW C EICAS message was received upon gear retraction.