As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FOUND CORROSION ON LOWER SILL LOCATED BTW FR 66 AND FR 68 RT SIDE AFT CABIN FLOOR STRUCTURE L=2" W=1.5" D=0.003" APPROX. SSI 534147. REPLACED LOWER SILL AND FASTENERS LOCATED BETWEEN FR 66 AND FR 68 RT SIDE AFT CABIN FLOOR STRUCTURE IAW SRM 51-72-11.