As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN LT AFT FLOOR SUPPORT FROM FR68 TO FR70 +Y254 HAS CORROSION AROUND FASTENER HOLES AT BOTH END. BLENDED AREA IAW SRM 51-74-00. DIM OF BLEND OUT ARE:L=2.0" W=1.0" D=0.027". FOUND TO BE OUT OF LIMITS IAW SRM 53-00-14, REMOVED DAMAGED FLOOR SUPPORT IAW SRM 51-42-11, INSTALLED NEW FLOOR SUPPORT IAW TRM 53-21-01 AND IAW DWG NR 18 D53472800.