As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECLARED EMERGENCY. CABIN PRESSURIZATION CONTROLLER FAILED, COULD NOT MAINTAIN CABIN PRESSURE. RAPID DECOMPRESSION OCCURRED. FWD F/A'S O2 MASK DID NOT FALL DOWN. PRESSURIZATION CONTROLLER OPERATED PARTIALLY DURING SHORT FINAL. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER, OVERHEAD MODULE, AND OUTFLOW VALVE. OPS CHECK GOOD PER MM.