As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(B-18607) DURING THE MX CHECK, CORROSION WAS FOUND BETWEEN STRINGER S-21R AND S-22R AT BS 881 IN AFT CARGO COMPARTMENT. THE CORRODED AREA WAS REMOVED AND REPORTED TO MFG FOR REVIEW AND REPAIR INSTRUCTION. REPAIR IS IN PROCESS IAW MFG SERVICE REQUEST (SR 1-2309502510).