As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT FROM KIAH THE WEATHER RADAR WOULD NOT COME OUT OF TEST PATTERN WITH FAIL LIGHT ON. CREW RETURNED TO KIAH AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED, INSPECTED AND REINSTALLED THE RADAR RT. THE OPERATIONAL CHECK WAS GOOD PER ALL APPLICABLE MANUALS AND THE AIRCRAFT WAS RETURNED TO SERVICE.