As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DECLARED AN EMERGENCY AND ACFT DIVERTED, PACK 2 FAULT IN FLIGHT. RESET DID NOT WORK WITH PACK 1 ON MEL, CAUSED CABIN ALT TO EXCEED 11500'. CREW PERFORMED AN EMERGENCY DESCENT. R & R NR 2 PACK FLOW CONTROL VALVE REF 21-51-510, OPS CK GOOD.