As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2586 CLIMBING THROUGH 10000 WHILE PERFORMING 2ND PART OF ICE TEST, THE CREW RECEIVED A BLEED 2 VALVE FAIL MESSAGE WITH A BLD 2 VALVE FAIL MESSAGE. THE CREW PERFORMED THE QRH WITH NO HELP, AND THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 HIGH STAGE VALVE, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.