As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON LOWER FRAME SECTOR AT FS333.00 BETWEEN STGR 25L AND STGR 26R. (C-CHECK) RO: 04/21/2019 REMOVED AND INSTALLED NEW LOWER FRAME SECTOR AT FS333.0 BETWEEN STGR 25L IAW SRM. PERFORMED PRESSURIZATION CHECK IAW AMM. CHECKED GOOD.