As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FUSELAGE SKIN AT FS 303 BELOW THE FWD LAVATORY SERVICE DOOR CUTOUT (BETWEEN STRINGERS 21R_& 22R) WAS FOUND WITH A 1INCH CRACK DUE TO CORROSION. THE CORRODED AREA OF SKIN WAS REMOVED WITH A 4.5 INCH X 4 INCH CUTOUT. THE CUTOUT WAS REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER ER/A 377626-14, REV A.