As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THE NUMBER ONE ENGINE THRUST REVERSER OPEN LIGHT ILLUMINATED IN FLIGHT. A/C RETURNED TO IAH WITHOUT INCIDENT. MX INSPECTED, AND OPERATIONALLY TESTED NR 1 THRUST REVERSER. NO DEFECTS NOTED. MX PLACED THRUST REVERSER ON MEL, AND THE A/C WAS APPROVED FOR RETURN TO SERVICE.