What was found
DURING C-CHECK INSPECTION IN BNA, THE LEFT BUTT STRAP WAS FOUND CORRODED BETWEEN FRAMES 15 AND 21 AND ALSO FROM FRAME 21 TO FRAME 25. MAINTENANCE REMOVED AND REPLACED THE TWO CORRODED SECTIONS OF BUTT STRAP IAW SRM 51-25-00, 51-21-00, AND 51-40-02. (M)