As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A C-CHECK IN MCN, THE LEFT AND RIGHT INBOARD FLOORBEAM INTERCOSTAL ATTACH CLIPS AT FS 280, LBL 9 AND RBL 9 WERE FOUND TO BE CRACKED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT INBOARD FLOORBEAM INTERCOSTAL ATTACH CLIPS AT FS 280, LBL 9 AND RBL 9 IAW SRM 51-42-20. (M)