As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) DURING DESCENT CABIN PRESSURE DIDN'T CHANGE, AT 14000 FEET WE HAD A 6000 FEET CABIN PRESSURE, SWITCHED CONTROLLERS WITH NO EFFECT IN CABIN PRESSURE. WE HAD TO USE MANUAL CONTROLLER TO DEPRESSURIZE THE CABIN. / PERFORMED BITE TEST OF CPC1 AND CPC2 IAW AMM 21-31-00-710-002-A. TEST OK."