As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON SRAME 589 AT FS 589 STGR R21-STRG L19 FWD AND AFT (C-CHECK) RO 3/25/2020 BLENDED CORROSION ON FRAME 589 STR 21R TO 19L. ORIGINAL THICKNESS IS .050, REMAINING IS .032 WITH TOTAL LOSS OF .018. REWORK WAS OUT OF LIMITS PER SRM. REMOVED AND REPLACED FRAME 589 SECTION AT STR 18L TO STR 21L AND STR 21L TO STR 21R. RESTORED ALL PROTECTIVE FINISHES.