As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT 360 WE RECEIVED CABIN ALTITUDE AND IMMEDIATELY RAN THE QRC. THE CABIN WAS UNCONTROLLABLE IN MANUAL MODE. WE DEPLOYED THE OXYGEN MASKS WHILE EXECUTING THE CHECKLIST. AIRCRAFT DIVERTED TO TULSA AND FLIGHT LANDED SAFELY WITHOUT INCIDENT. (OPEN)