As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AIRCRAFT WILL NOT PRESSURIZED. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT PHX. FOUND FORWARD E-AND-E BAY OPEN. PERFORMED PRESSURIZATION SYSTEM GROUND TEST GOOD. PER AMM 21-31-00-700-802.