As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN FLOORBEAM, BS 1161 BL 0 - LBL 6 CORRODED. REMOVED CORROSION, MATERIAL LOSS EXCEEDED SRM 53-00-51 FIG 101 SH 4 DET III LIMITS. REMOVED DAMAGED AREA OF TEE. ACCOMPLISHED HFEC OF CUTOUT & OPEN HOLE, NO DEFECTS NOTED. FABRICATED & INSTALLED EXTRUSION REPAIR FROM LBL 17 TO RBL 26 IAW ECRA5310-05536 REPAIR 2.