What was found
CLE - INFLIGHT DFW-EWR. CREW REPORTED PRESSURIZATION ISSUES DURING FLIGHT. RIGHT PACK INOPERATIVE AND LEFT PACK FAILED TO HOLD PRESSURIZATION. EMERGENCY DESCENT TO 10,000 FT. EMERGENCY DECLARED FLIGHT DIVERTED CLE LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. PLACARD LEFT AND RIGHT PACKS FOR FERRY FLIGHT TO ORD FOR REPAIRS. RESECURED CONNECTOR P1-450 THAT WAS LOOSE. SYSTEM GROUND CHECK NORMAL OPERATION.