As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN STA 168 RBL 54 FLOOR SUPPORT CORRODED. CORROSION DAMAGE ON MAIN CABIN FLOOR SUPPORT (GIRT BAR SUB FLOOR FITTING) STA 168 RBL 54 FOUND OUT OF LIMITS DUE TO 100% MAT LOSS, ORIG THICKNESS .105" IAW SRM 53-00-00 AND DRAWING 3936190 REV BW. REPLACED SUPPORT IAW DRAWING 9936534 REV BW AND 51-41-01.