As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - NR 5923040 - DURING BC4 CHECK DISCOVERED LEVEL 2 GALVANIC CORROSION ON FLOORBEAM AT FR 68 AND Y-1292. CORROSION WAS FOUND TO BE OUT OF SRM LIMITS. MAINTENANCE REMOVED AND INSTALLED NEW FLOOR BEAM FROM FR 68 TO FR 69 IAW AIRBUS 319 SRM 51-72-11.