As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ANTENNA IS INSTALLED ON THE AIRCRAFT FOR AN OSAT COMMUNICATION SYSTEM AS PART OF AN STC. CRACKS WE HAVE HAD IN THE PAST GENERALLY ARE HAIRLINE FRACTURES 3 INCHES UP FROM THE BASE, THIS ONE IS ALSO CRACKED COMPLETELY AROUUND THE BASE AT THE CUTOUTS FOR THE TWO AFT ATTACHMENT SCREWS. THE ANTENNA WAS REPLACED.