What was found
THE FUSELAGE SKIN WAS FOUND WITH A 2 INCH CRACK AT FS 747 JUST BELOW S-18R. THE CRACK WAS ROUTED OUT OF THE EXISTING SKIN AND AN EXISTING, ADJACENT SKIN REPAIR WAS REMOVED AND THE UNDERLYING EXISTING SKIN CUTOUT INSPECTED. BOTH AREAS WERE INCORPORATED INTO A SINGLE EXTERNAL ALUMINUM DOUBLER REPAIR ACCOMPLISHED PER THE GUIDELINES OF B737 SRM 53-30-3. THE REPAIR AND FOLLOW-UP DTA REQUIREMENT WERE DOCUMENTED PER ERA.