What was found
DEN - FLT 546 - FLIGHT CREW REPORTED CABIN ALTITUDE HORN SOUNDED AT 10,000 FEET. CLOSED OUTFLOW VALVE USING MANUAL DC AT 32,500 FEET. CABIN CONTINUED TO CLIMB AT 1,000 FPM AND A RAPID DESCENT WAS MADE TO 14,000 FEET. OXYGEN MASKS WERE AUTOMATICALLY DEPLOYED. REPLACED LT FLOW CONTROL VALVE, RESTOWED OXYGEN MASKS, AND PERFORMED PRESSURIZATION TEST, WITH NO DISCREPANCIES NOTED. CYCLES: 4,630. (X)