As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7826 - LAX TO PDX - FLIGHT CREW REPORTED AIRCRAFT DEPRESSURIZED IN FLIGHT ON DESCENT, NO EMERGENCY WAS DECLARED. MX PERSONNEL REMOVED AND REPLACED AUTO PRESSURE CONTROLLER OPERATIONALLY CHECKED SATISFACTORY AND AIRCRAFT WAS RELEASE TO RETURN FOR SERVICE IN AIRWORTHY CONDITIONS.