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 CARGO TRACK (FLOOR STRUCTURE) OF AFT CARGO COMPARTMENT BTW STA 767 TO STA 787 RBL 13 TO LBL 13 APPROXIMATELY STA 771 TO STA 772 RBL 13.84. CARGO TRACK (FLOOR STRUCTURE ) OF AFT CARGO COMPARTMENT STA 771 TO STA 772 RBL 13.84 WAS REPAIRED PER B737-900ER 53-00-53-2R REPAIR 2.