What was found
DURING HEAVY MAINTENANCE, CRACK INDICATION ON FRAME 43 RT SIDE IN AFT FASTENER HOLE SIDEBOX BEAM AREA IN PASSANGER CABIN (1 EA), REF AEROMAN NR 2020-308008 WO 2020 330/1. PERFORMED PERMANANT REPAIR ON FRAME 43 RT SIDE ON SIDE BOX BEAM IN PASSENGER CABIN, IAW EC A320-53-1251-02. THIS IS A MAJOR REPAIR.