As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN MOD VISIT: DURING FUSELAGE INSPECTION INSPECTION FOUND THE AFT LOWER GOGO ANTENNA BASE DOUBLER WITH CORROSION. CORROSION WAS REMOVED AND REMAINING THICKNESS WAS OUT-OF-LIMITS. THE GOGO ANTENNA DOUBLER WAS REPLACED.***SUPPLEMENTAL ACTION SECTION 3 AND 4: REMOVED AND REPLACED DOUBLER, FILLER AND U-CHANNEL IAW GOGO DRAWING P15511, P18146 AND SRM 51-42-11.