As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN, RT AFT FLOOR SUPPORT FR68-FR69 -Y1292 HAS CORROSION AROUND FASTENER HOLES & SURFACES. BLENDED AREA IAW SRM 51-74-00. CHECKED LIMITS L=2.0" W=1.0" D=0.064". FOUND TO BE OUT OF LIMITS IAW TRM 53-41-15. R & R FLOOR SUPPORT IAW SRM 51-42-11 AND TRM 53-21-01.