As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR SUPPORT INTERCOSTAL BETWEEN STA 312 AND 328 IS CRACKED ON THE FLOOR UPPER ATTACH FLANGE AT APPROX LBL45. LOCATED AND DRILLED INTERCOSTAL IAW SRM 51-40-05. REMOVED AND REPLACED CRACKED FLOOR SUPPORT AT BS 312 AND STA 328 IAW DWG 141A5400 IAW SRM 51-40-02.