As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY FS349.00 FRAME CORRODED BETWEEN STR 26L AND STR 26R (C-CHECK RO 7/28/2021) REPLACED FRAME SECTOR @ FS349.00 STRINGER 23L-24R PER SRM 51-42-06-001-001-A01 & DRAWING SH690-31350 REV M. SEE CONTINUATION CARD FOR DETAILS. CHECKS GOOD. COMPLIED WITH TASK CARD 51-900-1002-SKY.