As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) (EMERGENCY DECLARED) AIR PACK 1&2 FAULT, CREW DECLARED AN EMERGENCY AND EXPEDITED DESCENT TO 10,000. PASSENGER OXYGEN MASK DID NOT DEPLOY. / AIR PACK 2 FAULT IS DUE TO MEL 21-52-01-C. REMOVED AND REPLACED PACK 1 FLOW CONTROL VALVE IAW AMM 21-51-51-400-001-A. OPS AND LEAK CHECK GOOD. PACK 1 FAULT MSG CLEARED AT THIS TIME."