What was found
DURING C-04 CHECK GALVANIC CORROSION WAS FOUND ON THE UPPER AND LOWER SURFACE OF FLOORBEAM AT FR 66, Y1292, Z240. MAINTENANCE REMOVED CORRODED FLOORBEAM FROM FR 64 TO FR 66, Y1292, Z240; FABRICATED A NEW REPLACEMENT FLOORBEAM PER DWG D534-72209; INSTALLED REPAIR PART IAW A319 SRM 51-42-11 PG 6-7, AND SRM 51-49-00 PG 5-6.