As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE REMOVAL OF AN EXISTING STC VHF ANTENNA INSTALLATION ON BOTTOM FUSELAGE SKIN PANEL ASSEMBLY, LOCATED BETWEEN X291.40 - X312.35 AND BETWEEN STRINGERS 30P - 31P. PERMANENT REPAIR FOR THE REMOVED STC VHF ANTENNA IS INSTALLING A EXTERNAL DOUBLER WHICH WILL BE ACCOMPLISHED IAW DEHAVILLAND AIRCRAFT OF CANADA LIMITED RD 8-53-16413 ISSUE 1 DATED 22 OCTOBER 2019.