As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION WAS FOUND ON THE FLOOR SUPPORT OF MAIN DECK. S=0.4"*0.3" STATION 991 - STATION 1016 LBL 32. REMOVED THE FLOOR SUPPORT IAW 51-40-02 GEN REV 50, OK TO INSTALL . INSTALLED THE SUPPORT IAW SRM 51-40-02 GEN REV 50 DWG 147A5700 & 015968.