As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UPPER LT ATTACH LONGERON CRACKED AFT OF HOT BONDED DOUBLER. CRACK APPEARS TO HAVE STARTED AT A RIVET HOLE. THE CRACK WAS DISCOVERED DURING A ENGINE REMOVAL WHERE THE AFT ENGINE COWL WAS REMOVED EXPOSING THE LONGERON. THE CRACK MEASURES APPROX 3 INCHES IN LENGTH. THE CRACK WAS ORIENTED IN A LATERAL PLANE TO THE LENGTH OF THE PART.