As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6403 JFK-BNA, ON SCHEDULE MAINT CHECK FOUND LT FLOORBEAM AT Y=273.0L CORRODED BETWEEN FRAMES 16,17 & 18. REMOVED CORROSION REF SRM 51-12-00. REPAIRED DAMAGE AS PER JETBLUE EA E10-735-01 REVISION 12-9-10 REF EAMS H1908-2605. REPAIR WAS CLASSIFIED AS MAJOR REPAIR.