As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR SYSTEM DURING CLIMB CABIN ALTITUDE INDICATOR EXCEEDED 1000FT WITH INDICATION OF CABIN ALTITUDE. CORRECTIVE ACTION: HAS BEEN PERFORMED T/S "AIRPLANE CANNOT MAINTAIN CABIN PRESSURE ON A SINGLE PACK WITHIN SPECIFIED LIMITS, AND PERFORMED BLEED AIR CONTROL SYSTEM OPERATIONAL TEST, ENGINES NORMAL.