What was found
DURING C-04 CHECK GALVANIC CORROSION WAS FOUND ON UPPER SURFACE OF Y1162 FLOORBEAM FORWARD OF FR 68. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS, REMOVED CORRODED Y1162 FLOORBEAM FROM FR 68 TO FR 69; FABRICATED A NEW REPLACEMENT FLOORBEAM; INSTALLED REPAIR PART IAW A319 SRM 53-00-14, PG. 105-106, PARA 4B, & SRM 51-42-11, PG. 6 & 7.