What was found
SAL - DURING C4 CHECK DISCOVERED CORROSION ON WEB IN CABIN LOCATED AT FS 69+16", STRINGER 23L, Y1200. NO ALLOWABLE DAMAGE LIMITS WERE FOUND IN THE AIRBUS 320 SRM. MAINTENANCE REMOVED AND REPLACED THE WEB LOCATED AT FR 69+16", STRINGER 23L, Y1200 IAW AIRBUS 320 SRM 51-44-11. ALSO, APPLIED SEALANT TO NEW WEB IAW AIRBUS 320 SRM 51-76-11.