As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR HAS INCREASING FREQUENCY OF SPIKING +/ 30' OF CENTERLINE. SUBSEQUENT SPIKING NOW ALL QUADRANTS. UNABLE TO DUPLICATE. DUE TO HISTORY OF WXR RADAR ANT SPOKING PROBLEMS REPLACED WXR RADAR ANT DRIVE REF MM 34 43 11. OPS NORMAL REF MM 34 43 00.