As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN FLIGHT THE CREW HEARD A FLUTTERING NOISE ABOVE THE ACPC, THERE WAS A LOUD SOUND AND VIBRATION. UPON LANDING, CREW DISCOVERED ABOUT .2500 PART OF THE ELT ANTENNA IS MISSING. ELT ANTENNA REPLACED AND THE DAMAGED ANTENNA HAS BEEN SHIPPED TO THE VENDOR FOR INVESTIGATION.