As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR INOPERATIVE. THE POWER OUT IS MEASURING 125W MAXIMUM, DURING TEST. THE MINIMUM ACCEPTABLE POWER OUTPUT FOR A SERVICEABLE UNIT IS 175W. MOST UNITS ARE IN THE 250W RANGE. REPLACED THE A5 ASSEMBLY . THE LRU'S LOW POWER OUT CONDITION CORRELATES TO THE WRITE-UP OF NO RETURN BEYOND 40NM RANGE.