As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
C-CHECK. FRAME 18.250 LOWER FLANGE BETWEEN STRINGERS 31L AND 32L IS CORRODED. REMOVED RIVETS TO GAIN ACCESS TO AREA. REMOVED CORROSION IAW SRM 51-21-00-00-02. CORROSION ALSO FOUND BETWEEN STRINGERS 32L AND 33 AND WAS REMOVED AS WELL IAW R/D 8/4-53-2344. MATERIAL THICKNESS NOW AT .049" AND WITHIN LIMITS. NDT PERFORMED AND NO CRACKS NOTED. APPLIED ALLODINE AND PRIMER. R & R RIVETS.