As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT IN FLIGHT THE WEATHER RADAR TILT VARIES FROM SETTING .5 - 1.0 DEGREES. THE MAINTENANCE TEAM DETERMINED THE WEATHER RADAR CONTROL UNIT WAS DEFECTIVE. THE UNIT WAS REMOVED AND A REPAIRED UNIT WAS INSTALLED. OPS CHECKS WERE COMPLETED AND FOUND TO BE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.