As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HEAVY CHECK FOUND CORROSION ON LOWER FUSELAGE ANTENNA DOUBLER BETWEEN FR 16-17 AND STR 27-28L. AAR MX REPLACED LOWER FUSELAGE ANTENNA DOUBLER (P/N 170-14431-001) BETWEEN FR 16-17 AND STR 27-28L, IAW EMB SRM 51-41-02. FOR DETAILS OF WORK PERFORMED SEE AAR NRC NR 4500797-1000-0074. AC REMAINS IN YQG FOR COMPLETION.