Narrative:

Aircraft had a history of #2 bleed faulting, plus on startup jfk, #1 pack value light stayed on (paris maintenance later determined the #1 hp valve was sticking). Numerous loud air surges noted in cruise. At FL370 #2 bleed valve faulted. Tried to reset, but it faulted again. Turned #2 bleed off as per checklist and proceeded with #1 bleed supplying pressurization. After a particularly loud surge of air, I noted flow indications on ECAM bleed page simultaneously go from low to high. Cabin began to climb as APU was used unsuccessfully. Emergency descent was begun with clearance from breast control. During descent, it was discovered both outflow valves were open. Also, #1 automatic pressurization controller had failed and it had also failed to automatically switch over to #2 controller as it should have. At 14000 ft oxygen masks deployed. We leveled off at 10000 ft and were soon able to regain control of the pressurization system by switching manually over to #2 automatic controller. The errant #2 bleed value also reset. All passenger and crew were ok and flight landed in orly uneventfully.

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Original NASA ASRS Text

Title: DSCNT PROC EMER DSCNT EXECUTED AFTER MULTIPLE ACFT EQUIP MALFUNCTIONS PROBLEMS DURING OVERWATER OP.

Narrative: ACFT HAD A HISTORY OF #2 BLEED FAULTING, PLUS ON STARTUP JFK, #1 PACK VALUE LIGHT STAYED ON (PARIS MAINT LATER DETERMINED THE #1 HP VALVE WAS STICKING). NUMEROUS LOUD AIR SURGES NOTED IN CRUISE. AT FL370 #2 BLEED VALVE FAULTED. TRIED TO RESET, BUT IT FAULTED AGAIN. TURNED #2 BLEED OFF AS PER CHKLIST AND PROCEEDED WITH #1 BLEED SUPPLYING PRESSURIZATION. AFTER A PARTICULARLY LOUD SURGE OF AIR, I NOTED FLOW INDICATIONS ON ECAM BLEED PAGE SIMULTANEOUSLY GO FROM LOW TO HIGH. CABIN BEGAN TO CLB AS APU WAS USED UNSUCCESSFULLY. EMER DSCNT WAS BEGUN WITH CLRNC FROM BREAST CTL. DURING DSCNT, IT WAS DISCOVERED BOTH OUTFLOW VALVES WERE OPEN. ALSO, #1 AUTO PRESSURIZATION CTLR HAD FAILED AND IT HAD ALSO FAILED TO AUTOMATICALLY SWITCH OVER TO #2 CTLR AS IT SHOULD HAVE. AT 14000 FT OXYGEN MASKS DEPLOYED. WE LEVELED OFF AT 10000 FT AND WERE SOON ABLE TO REGAIN CTL OF THE PRESSURIZATION SYS BY SWITCHING MANUALLY OVER TO #2 AUTO CTLR. THE ERRANT #2 BLEED VALUE ALSO RESET. ALL PAX AND CREW WERE OK AND FLT LANDED IN ORLY UNEVENTFULLY.

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.