What was found
ON DEPARTURE, A/C WOULD NOT PRESSURIZE. PERFORMED BITE CHECKS ON CPC 1 AND 2 NO DEFECTS NOTED. PREFORMED MANUAL CPC OPERATION, OPS CHECKS NORMAL. REMOVED AND REPLACED CPC NR 2 PRECAUTIONARY PER M/M 21-31-11. OPS CHECKS NORMAL PER M/M 21-31-00.