As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 4586, DURING PREFLIGHT INSPECTION THE CREW REPORTED THAT THE CAPTAINS DV WINDOW WOULD NOT OPEN. MAINTENANCE INSPECTED THE AIRCRAFT AND VERIFIED NORMAL OPERATION OF THE CAPTAINS DV WINDOW, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.