As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPEATED COMPONENT FAILURE FROM HONEYWELL CPCU (CABIN PRESSURE CONTROLLER) P/N: 2119232-4. WE HAVE RECEIVED MULTIPLE “TESTED” “INSPECTED” “REPAIRED” UNITS THAT HAVE CONSISTENTLY FAILED. ARE REQUEST FOR A NEW COMPONENT HAS BEEN IGNORED. WERE ON OUR THIRD FAILED COMPONENT WITHIN A MATTER OF 1-2 MONTHS. THE MOST RECENT EVENT RESULTED IN A EMERGENCY DECENT.