What was found
MCN - MAJOR REPAIR - DURING 8-DAY CHECK, CORROSION WAS FOUND ON SHEAR PLATE Y50 BETWEEN FS 69 AND FS 70. MAINTENANCE REMOVED CORRODED SHEAR PLATE Y50 FROM FS 69 TO FS 70; FABRICATED A NEW REPLACEMENT SHEAR PLATE, INSTALLED REPAIR PART IAW A320 SRM 51-42-11.