Narrative:

After a normal flight from phx to oak preparation and briefings were made for an ILS approach to runway 29. Vectors to final were provided. Approximately 15 mi out, confign of the aircraft was initiated. Approaching the final fix, the aircraft was gear down with the flaps at 15 percent, we entered VMC conditions. After selecting flaps 25 percent, the master caution along with the hydraulic low pressure lights for the 'a' hydraulic system were noted. The problem was further verified by the zero quantity reading of the 'a' system. An emergency was declared by oakland tower. The QRH was referred to and the loss of system 'a' checklist completed. After landing, the aircraft was stopped on the runway. It was at this time that the flight attendants were notified as to what had taken place and that emergency equipment was on the way. The passenger were then told over the PA from the flight deck about what had happened and that we would have to wait to be towed into the gate. The problem was found to be a broken hydraulic line from the #2 engine. Repairs were made, with the aircraft flown out early the next morning.

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Original NASA ASRS Text

Title: A B737-200 LOSES ITS 'A' SYS HYDS WHILE ON FINAL APCH TO OAK. ACFT CONTINUES VISUAL APCH AFTER DECLARING AN EMER AND STOPS ON THE RWY FOR A TOW.

Narrative: AFTER A NORMAL FLT FROM PHX TO OAK PREPARATION AND BRIEFINGS WERE MADE FOR AN ILS APCH TO RWY 29. VECTORS TO FINAL WERE PROVIDED. APPROX 15 MI OUT, CONFIGN OF THE ACFT WAS INITIATED. APCHING THE FINAL FIX, THE ACFT WAS GEAR DOWN WITH THE FLAPS AT 15 PERCENT, WE ENTERED VMC CONDITIONS. AFTER SELECTING FLAPS 25 PERCENT, THE MASTER CAUTION ALONG WITH THE HYD LOW PRESSURE LIGHTS FOR THE 'A' HYD SYS WERE NOTED. THE PROB WAS FURTHER VERIFIED BY THE ZERO QUANTITY READING OF THE 'A' SYS. AN EMER WAS DECLARED BY OAKLAND TWR. THE QRH WAS REFERRED TO AND THE LOSS OF SYS 'A' CHKLIST COMPLETED. AFTER LNDG, THE ACFT WAS STOPPED ON THE RWY. IT WAS AT THIS TIME THAT THE FLT ATTENDANTS WERE NOTIFIED AS TO WHAT HAD TAKEN PLACE AND THAT EMER EQUIP WAS ON THE WAY. THE PAX WERE THEN TOLD OVER THE PA FROM THE FLT DECK ABOUT WHAT HAD HAPPENED AND THAT WE WOULD HAVE TO WAIT TO BE TOWED INTO THE GATE. THE PROB WAS FOUND TO BE A BROKEN HYD LINE FROM THE #2 ENG. REPAIRS WERE MADE, WITH THE ACFT FLOWN OUT EARLY THE NEXT MORNING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.