As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE. CORROSION TO THE AFT CARGO COMPARTMENT TRACK LOCATED AT RIGHT BUTTLINE 17.2 NEAR FR 787. INSTALLED NEW AFT CARGO FLOOR SUPPORT AT RIGHT BUTTLINE 13.84, FR 777 TO 887 PER AARD 51-00-05-1 AND BOEING DRAWING #146A7500, AND SRM 53-00-53-2R-3.