As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2627 - DURING CLIMB THE CREW REPORTED THAT BOTH THE PILOT AND COPILOT ATT AND HDG FAILED. THE AIRCRAFT RETURNED TO IAH WHERE THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS AHRS COMPUTER, OPERATIONALLY TESTED WITH NO DEFECTS. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.