What was found
LOSS OF CABIN PRESSURIZATION OCCURRED AT 35,000 FEET EN ROUTE MEM-HOU. CABIN PRESSURE WARNING LIGHT ILLUMINATED AND EMERGENCY DESCENT WAS MADE TO 8,000 FEET. OXYGEN MASKS WERE DEPLOYED THROUGHOUT THE CABIN. PRESSURE WAS REGAINED AND FLIGHT CONTINUED TO DESTINATION WITHOUT FURTHER INCIDENT. FOUND BLOWN AIR CONDITIONING DUCT. REPLACED THE CHECK VALVE AND DUCT ASSEMBLY. OPERATIONAL CHECK OK ON VESSEL LEAK CHECK. AIRCRAFT RETURNED TO SERVICE. DATE 950423 CHANGED TO 950422.