What was found
(AIRCRAFT 684, L/P 0809398) INITIAL INSPECTION: CORROSION ON FUSELAGE SKIN BELOW OF AFT LAVATORY SERVICE DOUBLER ACP 0600-100-02Z (FUS). SUMMARY OF NRC #050;LEVEL CORROSION 2; DUE TO EXCESSIVE CORROSION ON FUSELAGE SKIN OF AFT LAVATORY SERVICE, WAS REPAIRED PER ETI-57-18-026 REV.1 AND ER/A 572571-14DA REV. A.MAINTENANCE REQUERIMENTS WERE VERIFIED AND THE FOLLOWING ACTIONS ARE NEEDED: IDENTIFY REPAIR PER P.S. 900-5-1, NO. 04 PER ERA 572571-14AD.