ACFT EQUIP PROB. HYD FAILURE .

Narrative

I WAS ON A SHORT FINAL TO RWY 17L 2 MI INSIDE THE OM. I CALLED FOR FLAPS 15 DEGS ALL OPS NORMAL. I CALLED FOR GEAR DOWN; ALL OPS NORMAL. WITHIN 2 OR 3 SECONDS THE HYD WARNING CAME ON. THE MAIN ACCUMULATOR WAS BELOW RED RADIAL LINE; ALL OTHER READINGS WERE NORMAL. I WENT TO MANUAL OVERRIDE BUT THE MAIN ACCUMULATOR DID NOT MOVE. I THEN WENT TO HYD PUMP OFF AND ELECTED TO LAND WITH FLAPS 15 DEGS. GEAR WAS DOWN AND LOCKED WITH 3 GREEN LIGHTS. AFTER LNDG; I ATTEMPTED TO EXIT THE RWY ON THE HIGH SPD WITH THE TILLER BUT IT BECAME INOP. I THEN USED RUDDER AND DIFFERENTIAL PWR TO CTL THE ACFT AND EXIT THE RWY AND HIGHSPD TXWY SO AS NOT TO BLOCK ANY OTHER ACFT FROM USING IT. I TURNED N ONTO A PARALLEL TXWY AND BROUGHT THE ACFT TO A STOP. I THEN ATTEMPTED TO SET THE PARKING BRAKE BUT IT WOULD NOT SET. I THEN DECIDED TO FEATHER THE ENGS TO KEEP THE ACFT FROM MOVING. I FEATHERED THE R ENG AND THE ACFT MOVED FORWARD AND TURNED TO THE L. I HAD NO CTL AT THIS POINT EXCEPT FOR RUDDER AND PWR ON THE L ENG. I MANAGED TO KEEP THE ACFT OFF THE GRASS AND AVOIDED HITTING ANY TXWY LIGHTS AS THE ACFT MADE A 270 DEG TURN. THE ACFT WAS NOW FACING E POINTED TOWARD THE HIGHSPD TXWY WHICH I JUST EXITED. ANOTHER ACFT LANDED AND WAS USING THIS SAME HIGH SPD TXWY. I IMMEDIATELY SHUT THE ACFT DOWN IN ORDER TO STOP IT FROM MOVING FURTHER. THE ACFT CAME TO A STOP WITH NO FURTHER PROBS OR INCIDENTS. I TOLD THE FLT ATTENDANT AND PAX (14) TO REMAIN SEATED AND I WOULD GET BACK TO THEM SHORTLY. I THEN SECURED THE ACFT AND NOTIFIED ALL APPROPRIATE GND PERSONNEL. I THEN WENT INTO THE CABIN TO TELL EVERYONE WHAT HAD HAPPENED; THAT EVERYTHING WAS OK AND UNDER CTL AND A BUS WOULD BE OUT SHORTLY TO PICK THEM UP. AT ALL TIMES I FELT MY ACTIONS AND DECISIONS WERE PRUDENT AND SAFE AND THAT MY CREW; PAX AND ACFT WERE NOT IN DANGER AT ANY TIME. THERE NEEDS TO BE A BACKUP SYS FOR OUR HYDS ON THIS ACFT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: WHEN HYD WARNING CAME ON AND THE RPTR NOTICED THE MAIN ACCUMULATOR BELOW THE RED LINE; AT FIRST HE TRIED GOING TO 'AUTO THEN OVERRIDE;' BUT THERE WAS NO CHANGE SO; AS PER HANDBOOK PROC; TURNED OFF THE HYD PUMP. AFTER LNDG AND ATTEMPTING TO TURN OFF USING THE TILLER; THAT; PLUS BRAKING DEPLETED THE ACCUMULATOR PRESSURE. CONSEQUENTLY; THERE WAS NO HYD PRESSURE LEFT. POST-FLT INSPECTION REVEALED A BROKEN HYD LINE. RPTR BELIEVES THERE SHOULD BE A BACK UP HYD SYS ON THIS SAAB 340 ACFT. HE ALSO SAYS THAT HE WOULD DO THINGS DIFFERENTLY SHOULD THE HYD FAILURE OCCUR AGAIN. INSTEAD OF LNDG ON THE ARR RWYS; HE WOULD NOTIFY THE TWR OF THE HYD PROB AND REQUEST LNDG ON RWY 13. (IT WAS BEING USED FOR DEPS). THEN; HE WOULD REQUEST THE FULL RWY FOR ROLLOUT TO THE END OF THE RWY. WITH THE LONGER ROLLOUT ACCUMULATOR PRESSURE COULD BE CONSERVED UNTIL AT THE END AND THE ACFT COULD BE TURNED OFF AND STOPPED.