What was found
CABIN PRESS WARNING ILLUMINATED DURING CRUISE AT 12,000'. RAN CABIN PRESS WARNING CHECKLIST. RAN PRESSURIZATION FAIL CHECKLIST, COULD NOT CONTROL CABIN PRESSURE. RAN UNPRESSURIZED FLIGHT CHECKLIST WITH OPERATIONAL BLEEDS. FLIGHT ATTENDANT REPORTED AIR "GUSHING" INTO THE CABIN THROUGH THE TYPE II/III EMERGENCY EXIT. REMOVED FROM SERVICE. OPENED TYPE II/III DOOR AND FOUND EXCESS WATER CONTAINED IN BOTTOM SILL. REMOVED WATER AND REINSTALLED DOOR REF. MCN 652577-001 ISSUE 05. ATTEMPTED CABIN PRESSURIZATION, CABIN WOULD NOT PRESSURIZE. NO FUNCTION WAS NOTED AT THE CONTROL PANEL. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER REF AMM TASKS 21-31-06-000-801 AND 21-31-06-400-801. OPS CHECK NORMAL. PRESSURIZED AND DE-PRESSURIZED AIRCRAFT REF AMM TASKS 21-00-00-863-801 AND 21-00-00-863-802. PRESSURIZATION NORMAL. NO ABNORMAL AIR NOISES NOTED. RETURNED TO SERVICE.