As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DAMAGED CARGO FLOOR BOARD, LH SIDE ON REMOVAL DURING WIRE TROUBLESHOOTING FOR TSR 716838 FLOOR PANEL AT STATION 727A-10. GROUNDED - YES. FABRICATED NEW FLOOR BOARD PANEL FROM BOEING DWG 146A5810 SHEET 71 AND 814A6580 SHEET 18. INSTALLED NEW FABRICATED PANEL.