CAPT OF MLG ACR ACFT REQUESTED THAT EMER GND EQUIP STANDBY DURING LNDG DUE TO LOSS OF MOST HYD SYS OIL TO OPERATE NORMAL WING FLAPS; SPOILERS; SLOTS; LNDG GEAR AND BRAKES. HOWEVER; FLC OVERCAME SYS PROB AND MADE SUCCESSFUL LNDG.

Narrative

DURING CRUISE FLT THE FO NOTICED THE R HYD QUANTITY WAS LOW; BELOW 4 QTS AND JUST ABOVE THE RED ARC. THE HYD PUMPS WERE 'OFF' AND 'LOW.' THE QUANTITY WAS STABLE. THE R HYD PUMP WAS PLACED TO THE 'HIGH' POS AND THE QUANTITY DECREASED. THE R HYD PUMP WAS PLACED 'OFF' BUT THE RUDDER CTL WENT 'MANUAL' AND THE 'LOW' POS SHOWED NO FLUID LOSS SO THE R HYD SYS PUMPS WERE L IN 'LOW' AND 'OFF.' THE DISPATCHER AND MAINT CTL WERE NOTIFIED AND THE QUANTITY MONITORED. THE ACFT WAS CONFIGURED FOR LNDG EARLY DOWN TO FLAPS 15 DEGS; SLATS EXTENDED USING THE L HYD SYS IN 'HIGH' AND 'OFF.' THE R SYS PUMP WAS PLACED TO 'HIGH;' THE GEAR EXTENDED NORMALLY AND THE R SYS RETURNED TO 'LOW' AND 'OFF.' WITH GEAR EXTENSION THE R QUANTITY WENT TO 1/2 QT REMAINING AND WE ANTICIPATED TOTAL FLUID LOSS. AN EMER WAS DECLARED BECAUSE WE WERE ASKED TO KEEP OUR SPD UP TO 180 KTS ON FINAL; A WET RWY WAS GOING TO BE USED AND WE WANTED EMER EQUIP IMMEDIATELY AVAILABLE. AN UNEVENTFUL 50 DEG FLAP LNDG WAS MADE. A DEADHEADING CREW MEMBER WAS ON BOARD. WE SHOULD HAVE CALLED HIM UP AND GOTTEN HIS INPUT. THE FLT ATTENDANT WAS ADVISED WE WERE CONCERNED WITH THE AMOUNT OF FLUID IN THE SYS BUT WAS SURPRISED AT THE EMER EQUIP. THE FLT ATTENDANT SHOULD HAVE BEEN APPRAISED OF HOW GRAVE WE (THE PLTS) FELT IT TO BE AND WHAT TO EXPECT.