As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVE AND INSTALL LOWER FRAME SECTOR AT FS349 STR 23L - STR 23R FOR RT LONGERON REPLACEMENT. (C-CHECK) RO 4/23/2020 REMOVED AND INSTALLED NEW FS 349 LOWER FRAME COMMON TO SKIN FROM STR 23L TO STR 24R REF SRM AND DRAWING, DUE TO CORROSION FOUND WHEN ORIGINAL WAS REMOVED TO FOM SEE CONTINUATION CARD FOR DETAILS. PRESSURE CHECKS GOOD / COMPLIED WITH TASK CARD.