As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF CREW REPORTED TO DISPATCH DUAL CABIN PRESSURE SYSTEM FAILURES. ALSO DD STATED CREW REPORTED MANUAL OPERATION INOPERABLE LOCKING ITEM FOR CONFIRMATION UNLOCKED FOR DISPOSITION. REF L/P 5475842 FOR NR 1 AND NR 2 CPC REPLACEMENT AND OUTFLOW VALVE REPLACEMENT.