What was found
LOST PRESSURIZATION DURING DESCENT, CABIN ALTITUDE 8000 FT AND INCREASING DESCENDED AS SOON AS POSSIBLE TO 10,000 FT, CABIN ALTITUDE REACHED 11,000 FT. CABIN REMAINED UNPRESSURIZED FOR REMAINDER OF FLIGHT. OXYGEN MASKS DID NOT DEPLOY. REMOVED AND REPLACED THE DIGITAL PRESSURIZATION CONTROLER. OPS CHECKED GOOD IAW AMM 21-31-00. NO DEFECTS NOTED IN AUTO OR MANUAL.