What was found
AIRCRAFT WAS GROUNDED: AIRCRAFT ARRIVED IN CLT WITH VHF ANTENNA BROKEN OFF AND MISSING ON AFT BELLY. THE BASE OF THE ANTENNA WAS STILL ATTACHED WITH THE COAX CABLE HANGING OUT ABOUT 12 INCHES. MAINTENANCE INSPECTED THE AIRCRAFT AND DETERMINED THE ANTENNA HAD SEPERATED FROM THE AIRCRAFT AND THAT IT DID NOT APPEAR TO BE THE RESULT OF A TAIL STRIKE. MAINTENANCE INSTALLED A NEW VHF ANTENNA PER AMM 23-12-11 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.