What was found
DURING HEAVY MAINTENANCE: CRACKS 6EA: OVERWING EMERGENCY EXIT HATCH 843 FWD INNER SEGMENT UPPER SIDE. CRACK 1: 13TH FASTENER (L=0.241"), CRACK 2: 14TH FASTENER (L=0.553"), CRACK 3: 15TH FASTENER (L=0.110"), CRACK 4: 16TH FASTENER (L=0.155"), CRACK 5: 17TH FASTENER (L=0.170"), CRACK 6: 18TH FASTENER (L=0.420"); REF AEROMAN NR 2022-317569 W/O: 2022 68/1 : ACCOMPLISHED SB A320-52-1144.