As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2124 - DURING DESCENT AT 8000 FT, AIRCRAFT DEPRESSURIZED RAPIDLY. DIFFERENTIAL PRESSURE DROPPED TO 0. MAINTENANCE REPLACED THE CABIN PRESSURE CONTROLLER. LEAK TEST AND OPERATIONAL CHECK WAS GOOD. AIRCRAFT RETURNED TO SERVICE.