As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN PRESSURE ROSE AT FLIGHT LEVEL 340 AND CABIN MASKS AUTO DEPLOYED AT FLIGHT LEVEL 140. EMERGENCY DESCENT TO 10000. AFTER LEVEL AT 10000 PACK FLOW RETURNED AND BOTH PRESSURIZATION CONTROLLERS RESET. FAILURE OCCURRED JUST AFTER EXITING ICING CONDITIONS AND ANTI ICE SECURED. LANDED ABQ WITHOUT INCIDENT. REPLACED BOTH NUMBER ONE AND NUMBER TWO CONTROLLERS. SYSTEM GROUND CHECKED NORMAL OPERATION.