B787-900
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew Overcame Equipment Problem
Aircraft
Roughly XA:20 into the flight; southwest of ZZZZ; the HYD QT LOW R alert displayed on the MFDU (Multi function Display Unit). Accomplished the checklist. Selected the HYD page from the Systems menu and noted the right hydraulic quantity indicated .34. Called dispatch and requested Maintenance Control be conferred in. Requested Maintenance Control's input on securing the right engine primary hydraulic pump. Maintenance Control concurred it would be beneficial to secure the right engine primary pump; and it was secured. The right electric demand pump activated. The right hydraulic quantity continued to decrease. Secured the right electric demand pump. The right hydraulic quantity indicated .16 when the right electric demand pump was secured. After conferring with dispatch and Maintenance Control; it was determined that the preferred course of action was to continue to ZZZ. The right hydraulic quantity stabilized at .12.
787 Captain reported right hydraulic system quantity began dropping and elected to secure the right engine driven pump and the right electric motor driven pump.