What was found
DURING C-CHECK IN BNA, FLOOR SUPPORT ANGLE IS CORRODED AFT OF THE COCKPIT ENTRANCE AT FS 231 BETWEEN LBL 10 AND LBL 14. MAINTENANCE REMOVED CORROSION/MATERIAL, REMOVED IS OUT OF LIMITS IAW SRM 51-10-10. FABRICATED REPAIR ANGLE FROM 2024T3 .050. ALODINED, PRIMED AND TOPCOAT. INSTALLED REPAIR ANGLE IAW SRM 51-40-21.