What was found
RIGHT SIDE FLOOR SILL HAS MULTIPLE AREAS OF CORROSION BETWEEN FS 409+128 TO FS 559. C-CHECK RO 10/18/2020. REPAIRED RT SIDE PRESSURE FLOOR SILL CORROSION AT MULTIPLE LOCATIONS BETWEEN FS 409+128 TO FS 559, IAW REO. MAJOR REPAIR TASK CARD & FORM M337 COMPLETED AND ATTACHED. NO MEASURABLE WEIGHT CHANGE. NOTE REPAIR REQUIRES A DETAILED VISUAL INSPECTION EVERY 8260 FLIGHT CYCLES WITH A REPEAT EVERY 8260 FLIGHT CYCLES FIRST INSPECTION IS DUE AT 43061 FLIGHT CYCLE. REFERENCE ATTACHED CONTINUATION CARD FOR DETAILS OF LOCATIONS OF BLENDING AND WORK PERFORMED.