As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT PRESSURIZING EMERGENCY DECLARED. CABIN ALT, AP AND RATE DROPPED TO ZERO IN CLIMB AND STAYED AT ZERO UNTIL WE RAN CHECKLIST AND NEVER RECOVERED. -C/A-INTERROGATED CMC FOR MSGS IAW E145 AMM 45-45-00. NO MSG FOUND. RAR DIGITAL CONTROLLER IAW E145 AMM 21-31-01.PERFORMED OPS CHK OF AUTO AND MANUAL MODE IAW E145 AMM 21-31-00.OPS CHK GOOD. LEAK DOWN CHECK GOOD. NO FURTHER FAULTS FOUND.