As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUAL PACK FAILURE DURING CLIMB OUT. EXCESSIVE CABIN ALTITUDES REACHED 10,200. PAX OXYGEN MASKS DID NOT DEPLOY. THE AIRCRAFT WAS GROUNDED. PERFORMED OPS CHECK OF BOTH PACKS WITH ENGINE BLEED IAW AMM 21-61-00, AND PRESSURIZED CABIN WITH NO DEFECTS NOTED IAW IAW AMM 21-31-00.