As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR SHOWS FALSE RETURN AT 10 & 2 O'CLOCK. ACFT GROUNDED. COULD NOT DUPLICATE. NO HISTORY 90 DAYS. ACCOMPLISHED WEATHER RADAR SYS - SYS TESTED IAW MM 34-43-00-730-802-001, TEST PASSED. OK FOR SERVICE. ETOPS SIGNIFICANT SYS GROUND VERIFICATION SUCCESSFUL.