What was found
DURING C-CHECK INSPECTION IN BNA, THE RIGHT SEAT TRACK SILL PLATE FLANGE WAS FOUND CORRODED BEYOND LIMITS AT FRAMES 17, 19 AND 22. WHILE REPAIRING THE SILL PLATE (P/N 120-05803-01) THE RIGHT OUTBOARD CROSSBEAM (P/N 12004149-002) AT FRAME 16 WAS ALSO FOUND CORRODED. MAINTENANCE REMOVED AND REPLACED THE CORRODED SILL PLATE FLANGE IAW SRMS 51-40-02 AND 51-21-02. MAINTENANCE ALSO REMOVED AND REPLACED THE CORRODED CROSSBEAM AT FRAME 16 IAW SRMS 51-25-00 AND 51-40-02. (M)