What was found
MCN - MAJOR REPAIR - DURING C-03 CHECK CORROSION WAS FOUND ON THE BOTTOM SURFACE OF THE UPPER LEG ON FLOORBEAM SPLICE, FR 66+7, Y765. MAINTENANCE REMOVED CORRODED SPLICE AT FR 66+7, Y765; FABRICATED A NEW REPLACEMENT SPLICE; INSTALLED REPAIR PART IAW A320 SRM 51-42-11, PG. 6-7.