As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4295 PRESSURIZATION FAILED CLIMBING THROUGH 12000FT DESC TO 10000FT ATTEMPTED TO RESET PER RED ADM 1 AC WOULD NOT PRESSURIZE. THE AIRCRAFT WAS REMOVED FROM SERVICE. ON LG PAGE 3165073 REMOVED AND REPLACED COUPLING FOR DUALN TEMPERATURE CONTROL IAW EMB AMM 21-60-01 LEAK CHECK GOOD MEL RESTORED PERFORMED OPERATIONAL CHECK OF PRESSURIZATION IAW AMM 21-31-00 OPERTAIONAL WAS CHECK GOOD. THE AIRCRAFT RETURN TO SERVICE.