As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON THE CLIMB, PASSING THROUGH 14000 FEET, GOT AN CABIN ALT CAUTION MESSAGE, THEN PROCEED CLIMB TO 17000 FEET THEN GOT CABIN ALT WARNING MESSAGE. FOLLOWED BY DOING QRC AND QRH. THEN CABIN AUTOMATICALLY DEPLOYED OXYGEN MASKS. FOUND MEL MX ACTION TO HAVE BEEN C/W WRONG SEE AML NR 52564 FOR MEL MX. FOUND 15 O2 GENERATORS USED BY PAX SEE AML NR 525484 FOR WORK PERFORMED.