As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING CC#12016-53 HFEC OF OPEN HOLES COMMON TO LEFT #3 FLIGHT DECK WINDOW FRAME FOUND SECOND HOLE FROM THE BOTTOM TO BE CRACKED RUNNING FWD AND AFT. / THIS WORK CARD WILL BE ACCOMPLISHED ON ACO # 8471-53 (SAM735/R.ARCENEAUX/28FEB20)