As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ANTENNA WHIP WAS MISSING FROM BASE OF ANTENNA WHEN RETURNING FROM FLIGHT. AFTER INVESTIGATION, CONCLUDED THAT WHIP BROKE DUE TO EXCESSIVE VIBRATION, MAYBE CAUSED BY BY MAST FAIRING T/E TURBULENT AIR FLOW. THE POSITION OF ANTENNA IS JUST A FEW INCHES AFT OF MAST FAIRING, ON TAILBOOM FAIRING. (TC 20100202001)