As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT FOUND THE FUSELAGE SKIN CRACKED IN THE UPPER AFT CORNER OF FIRST OFFICERS DV WINDOW CUTOUT. THE CRACK LENGTH IS 58 MM. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPAIRED WINDOW CUTOUT WITH DOUBLER REPAIR IAW ENGINEERING ORDER EM 53MR 1536 PT. B. THE AIRCRAFT WAS RETURNED TO SERVICE.