What was found
CREW REPORTED VIBRATION DURING CLIMBOUT, WITH INCREASING INTENSITY. AIRCRAFT RETURNED TO FIELD. FOUND PORTION OF LOWER COMM ANTENNA MISSING. REPLACED ANTENNA.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED VIBRATION DURING CLIMBOUT, WITH INCREASING INTENSITY. AIRCRAFT RETURNED TO FIELD. FOUND PORTION OF LOWER COMM ANTENNA MISSING. REPLACED ANTENNA.