What was found
LOST HYD B SYS QUANITY IN FLIGHT RAN CHECKLIST AND UNLOADED THE B PUMP. FOUND THAT RT ENG HYD PUMP FAILED. REMOVED HYD PUMP AND INSTALLED REPAIRED UNIT (REF WO 29760 1.15) PRIMED PUMP, BLED HYD SYS B, RAN ENGINES, AND FOUND NO LEAKS AT THIS TIME AND HYD SYS B IS OPERATING NORMALLY AT THIS TIME IAW MM 29-10-02.