What was found
THE AUTO PRESSURE CONTROL INOPERATIVE PER MEL 21-14A. AIRCRAFT LOST CABIN PRESSURE WITH OXYGEN MASKS DEPLOYING. CABIN WAS UNCONTROLLABLE IN ALL PRESSURIZATION MODES. DESCENDED TO 10,000 FT, CONTINUED TO CLT. LANDED, NO EMERGENCY DECLARED. CREW REPORTED OXYGEN MASKS AT SEAT 1DF, 3DF AND AFT LEFT LAV FLT ATTENDANT STATION DID NOT DEPLOY. REMOVED AND REPLACED AFT OUTFLOW VALVE. OPS CHECK NORMAL. PERFORMED SATISFACTORY PRESSURIZATION CONTROL CHECK. CLEARED MEL 21-14A. DROPPED OXYGEN MASK DOORS, THAT DID NOT DEPLOY. REPLACED ALL AFFECTED OXYGEN GENERATORS, REPACKED OXYGEN MASKS IN PSU'S. OPERATIONALLY CHECKED OXYGEN MASKS AND DOORS PER MM 35-22-00. OPERATIONAL CHECK GOOD. AIRCRAFT OK FOR SERVICE.