As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS BEING CATERED STRINGER 12L AT FRAME 89 AFT OF L2 DOOR OPENING WAS BENT/DAMAGED BEYOND ALLOWABLE LIMITS. MAINTENANCE REMOVED AND REPLACED STRINGER SECTION 12L AT FRAMES 88 TO 90 IAW EMB 175 SRM 51-41-00. THE AIRCRAFT IS OUT OF SERVICE IN CMH WITH FOLLOW ON MAINTENANCE IN PROGRESS. THIS IS CLASSIFIED AS A MAJOR REPAIR.