As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B757-53-3-0553; MAIN CABIN FLOOR LONGITUDINAL FLOOR SUPPORT CORR ODED AT BS 365 RBL 24 REF HAECO GSO NR 9281476 REMOVED CORROSION ON FLOOR SUPPORT IAW B757-300 SRM 51-10-02. OR IGINAL THICKNESS .070", REMOVED .024", LEAVING AN REMAINING THIC KNESS OF .046", FOUND TO BE OUT OF LIMITS IAW B757-300 SRM 53-00 -52. REMOVED AND REPLACED FLOOR SUPPORT IAW BOEING DWG 141N5130 REV F. REF HAECO GSO NR 9281476. HAECO GSO MECH V918979 INSP QC418 V901877.