A320 CREW LOST CABIN PRESSURIZATION IN ZOB CLASS A AIRSPACE.

Narrative

AT APPROX XA45Z; FL370;. APPROX 110 NM W OF CLE; 'CABIN PRESSURE SYS #1 AND #2 FAULT' ECAM DISPLAYED; FOLLOWED IMMEDIATELY BY 'CABIN PRESSURE EXCESS CABIN ALT' ECAM. (CABIN PRESSURE CONTROLLER #2 PREVIOUSLY DEFERRED.) BOTH PLTS DONNED OXYGEN MASKS; EMER DECLARED WITH ZOB; AND EMER DSCNT BEGAN TO 10000 FT. AS CLE WAS DIRECTLY ON OUR PATH; AND BOTH PLTS WELL FAMILIAR WITH ARPT AND SUPPORT FACILITIES; DECISION MADE TO DIVERT TO CLE. EMER DSCNT QRC TO INCLUDE REF ACTION ITEMS OF A320 HANDBOOK ACCOMPLISHED. FLT ATTENDANTS WERE BRIEFED AND TOLD TO PREPARE CABIN FOR UNSCHEDULED LNDG IN CLE. CABIN ALT REACHED AT LEAST 12500 FT. HOWEVER; PAX OXYGEN MASKS DID NOT DEPLOY. ALL APPROPRIATE CHKLISTS WERE PERFORMED; AND AN UNEVENTFUL LNDG WAS MADE IN CLE. ACFT AND CREW OVERNIGHTED IN CLE; AND ON MAY/XA/01 CREW FERRIED THE ACFT TO ORD UNPRESSURIZED ON A MAINT FERRY PERMIT. CREW COORD AND INTERACTION WITH FLT ATTENDANTS WORKED VERY WELL. THERE ARE A FEW CONCERNS ABOUT THE VERBIAGE IN THE A20 HANDBOOK THAT CAME TO LIGHT IN OUR PARTICULAR SIT. THESE CAN BE ADDRESSED AT THE APPROPRIATE TIME.