As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN DTW FOR SCHEDULED MOD, MTC IS ACCOMPLISHING REMOVAL OF THE FWD ATG ANTENNA PER AMDS 2330-01344-01A AND GOGO DWG P19110-24406, REV B. UPON REMOVAL OF THE DOUBLER, MTC REPORTED MULTIPLE EXISTING HOLES WERE FOUND TO BE ELONGATED. MAINTENANCE REPAIRED PER ERA 551105-14