What was found
SAL - MAJOR REPAIR - DURING BC-4 CHECK, EXFOLIATION CORROSION WAS FOUND ON FLOORBEAM -Y1292 AT FS 66+3". MAINTENANCE REMOVED CORRODED FLOORBEAM -Y1292 FROM FS 64" TO FS 66+5", FABRICATED A NEW REPLACEMENT FLOORBEAM, INSTALLED REPAIR PART IAW A320 SRM 51-72-11.