As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FUSELAGE BELLY SKIN CORRODED THROUGH AT FS 231.00" & LBL 17.00" ADJACENT TO EXTERIOR WING TO FUSELAGE FAIRING. FOUND FAIRING HAD FELT/FOAM LIKE MATERIAL FOR SOUND DEADENING, WAS SOAKED WITH MOISTURE. THIS WAS HELD AGAINST THE ACFT SKIN CAUSING THE RESULTS .