As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN UTILITY AREA BETWEEN FR68 & FR69 FLOOR SUPPORT Y+1292 HAS CORROSION. CHECKED LIMITS AT BLENDED OUT AREA, DIMENSIONS L=1.500" W=1.300" D=0.075" ORIG MAT THICKNESS 0.157" FOUND TO BE OUT OF LIMITS IAW TRM 53-41-15 FIG 1. LOCATED AND DRILLED FLOOR SUPPORT AND SPLICES IAW SRM51-44-11. INSTALLED FLOOR SUPPORT AND SPLICES AT FR66 TO 68 Y+1292 IAW SRM 51-42-11 RESTORED PROTECTIVE COATING IAW SRM 51-21-11, 51-75-12.