As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION MAIN CABIN FLOORBEAM TOP TEE CAP BS. 380 RBL 45 TO RBL 61 CUTOUT AREA DAMAGE, DIM: 2 1/2" X 1" IAW SRM 53-10-8. FABRICATED TWO REPAIR ANGLES FROM 7075TO HEAT TREATED TO T6 CONDITION IAW FAS ENGINEERING REPORT 2-37153-801 REV A DIM: 5 1/2" X 2 5/8" & 10 1/2" X 2 3/8". FABRICATED ONE FILLER IAW SRM 53-10-8 FIG 2 AND INSTALLED REPAIR PARTS & STIFFNER IAW SRM 51-30-2.