What was found
MAIN CABIN FLOOR BEAM HAS CORROSION -Y500 AT FR 69 AND FR 70. GROUNDED - YES. FLOOR "L" BEAM Y-500 AT FR69- FR70, CORROSION DEPTH .035", ALLOWABLE MAX. DEPTH IS .016" FOUND TO BE BEYOND ALLOWABLE LIMITS REF A320 SRM 53-00-14. MANUFACTURED NEW "L" BEAM P/N D5347222320200 ON ASA CARD G1587785, REMOVED AND REPLACED "L" BEAM P/N D5347222320200 FROM FR 68 - FR 70, Y-500 REF AIRBUS DWG 53472003 REV J AND A320 SRM 51-42-11.