As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT SPLICE PLATE BETWEEN #1 AND #2 FLOOR PNLS IS CORRODED. GROUNDED - YES. UPON FURTHER INVESTIGATION SPLICE PLATE FOUND TO HAVE 100% MATL LOSS, FABRICATED NEW SPLICE PLATE IAW B737 800 SRM 51 40 05 0G 0 W 1IN O .07 R .000 L 2IN. D .07.