What was found
DURING HEAVY MAINTENANCE, CRACK INDICATION ON FRAME 43 LH SIDE, MIDDLE OPEN FASTENER HOLE SIDE BOX BEAM FLANGE IN PASSENGER CABIN; REF AEROMAN N/R 2022-237654, PERFORMED SERVICE BULLETIN A320-53-1258, LOCATED FUSELAGE / TORSION BOX / LOWER SIDE SHELL / FRAME 43 LH SIDE / FITTING REINFORCEMENT- CONFIGURATION 001. THIS JOB WAS ACCOMPLISHED WITH EC#A320-53-1251.MAJOR REPAIR.