As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND LOWER FUSELAGE EXTERNAL CUTOUT FOR NR 2 AD ANTENNA CORRODED BETWEEN SKIN AND INTERNAL DOUBLER AND MATING SURFACE AT FS 484-503, LONGERON 29L AND 30. THE INTERNAL DOUBLER WAS REMOVED AND REPLACED IAW SRM 51-30-2 AND 51-30-5.