What was found
MAIN CABIN AFT R/H AT FR 66, FLOOR BEAM 2ND FROM CENTER, HAS CORROSION ON TOP OF BEAM. MARKED IN RED GROUNDED - YES. REMOVED AND REPLACED FLOOR BEAM IAW ASA A320 SRM 51-42-11/001 AND DWG D53472284 ISSUE A AT RH SIDE FR 66 -Y464.8, IAW A320 SRM 51-72-11