What was found
DISCREPANCY: REFERENCE AIRBORNE/PEMCO N/R 14223.0291 AIRCRAFT WAS NOT GROUNDED AND IS IN CHECK FOR SHCEDULED MX. AFT WET AREA FLOOR BEAM Y765 CORRODED AT FR 68 CORRECTIVE ACTION: EVALUATED REMOVED AND REPLACED NEW FLOOR BEAM P/N D5347267901600 AT MAIN CABIN Y765 FROM FR66 TO FR70 IAW A320 SRM 51-42-11, SRM 51-72-11-911-001, SRM 51-21-11, SRM 51-75-12-911-001. MX ACTION IS ACCEPTABLE./END/