What was found
DURING C-CHECK INSPECTION IN BNA, STRINGER 19 LEFT WAS FOUND TO BE CORRODED BETWEEN FRAMES 13 AND 15A. CORROSION WAS ALSO FOUND ON THE SAME STRINGER BETWEEN FRAMES 16 AND 18A. MAINTENANCE REMOVED AND REPLACED THE CORRODED STRINGER IAW SRM'S 51-40-00, 51-25-00, AND 51-21-00. (M)