What was found
AIRCRAFT WAS GROUNDED. DURING CLIMB, THE PRESSURIZATION AUTO INOPERATIVE AND BLUE INOPERATIVE LIGHTS ILLUMINATED. CABIN ALTITUDE CLIMBED. OUTFLOW VALVE CLOSED AND LOCKED MANUALLY. CABIN ALTITUDE REMAINED UNCONTROLLABLE. MAINTANED 10,000 FOOT ALTITUDE TO DESTINATION. MAINTENANCE R & R BOTH OUTFLOW VALVE AC MOTORS IAW AMM 21-32-05. ACCOMPLISHED FUSELAGE LEAK TEST IAW AMM 21-00-00-501 AND PRESSURE CONTROLLER BITE IAW AMM 21-32-00. SYSTEM CHECKS NORMAL.