What was found
MAIN CABIN AFT WET AREA, LONGITUDINAL BEAM UPPER SURFACE CORRODED BETWEEN FR69 AND FR70 APPROX Y765.MARKED GROUNDED - YES. REMOVED AND REPLACED LONGITUDINAL BEAM LOCATED IN MAIN CABIN, AFT WET AREA BETWEEN FR69 & FR70, APPROX. Y765 PER AIRBUS DWG D53472040 AND A320 SRM 51-41-11.