What was found
DURING C-CHECK INSPECTION IN BNA, THE 3 RIGHT, MOST OUTBOARD CROSS FRAMES HAD CORROSION AT FRAME 20. MAINTENANCE REMOVED THE 3 CORRODED, RIGHT, OUTBOARD MOST CROSS FRAMES IAW SRM 51-40-02. MAINTENANCE INSTALLED THE NEW CROSSBEAMS IAW SRM 51-21-02. (M)