What was found
DURING HEAVY MAINTENANCE: CRACKS 4EA: OVERWING EMERGENCY EXIT HATCH 834 FWD INNER SEGMENT UPPER SIDE. CRACK 1: 8TH FASTENER (L=0.121"), CRACK 2: 16TH FASTENER (L=0.693"), CRACK 3: 17TH FASTENER (L=0.610"), CRACK 4: 18TH FASTENER (L=0.592"); REF AEROMAN NR 2022-317577 W/O:2022 68/1 : ACCOMPLISHED SB A320-52-1144.