What was found
DURING C4 CHECK DISCOVERED CORROSION ON WEB LOCATED IN THE AFT CARGO COMPARTMENT FROM FS 54 TO FS 57, Y-700. MAINTENANCE REMOVED WEB FROM FS 54 TO FS 57, Y-700 IAW AIRBUS 320 SRM 51-72-11. NEW WEB INSTALLED FROM FS 54 TO FS 57, Y-700 IAW AIRBUS 320 SRM 51-72-11.