As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FUSELAGE SKIN WAS FOUND WITH A CRACK EMANATING FROM TWO DRAIN MAST HOLES AT FS 1836 BETWEEN STRINGERS 39 AND 40. THE SKIN WAS CUT OUT TO REMOVE THE CRACKS AND AN ALUMINUM DOUBLER AND TRIPLER WERE INSTALLED PER ER/A 363649-14, REV A.