What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK GALVANIC CORROSION WAS FOUND ON FLOORBEAM AT FR 68, Y1193, Z240. MAINTENANCE REMOVED CORRODED FLOORBEAM AT FR 68, Y1193, Z240; RECEIVED A NEW REPLACEMENT FLOORBEAM; INSTALLED REPAIR PART IAW A319 SRM 51-42-11 PG 6-7.