What was found
MAINTENANCE FOUND LEVEL 2 CORROSION AT 3 EA LOWER ANGLE AND 4 CRACK RECEPTACLE ON PANEL 1431DL. MAINTENANCE REMOVED AND REPLACED 1 EA LOWER ANGLE AND 4 CRACK RECEPTACLE ON PANEL 1431DL REF. EMB SRM 51-40-08, 51-40-02. RESTORED SURFACE PROTECTION TO 2 EA LOWER ANGLE ON PANEL 1431DL REF. EMB SRM 51-23-04, 51-23-05, 51-23-06. AIRCRAFT REMAINS IN HEAVY CHECK FOR DURATION OF THE CHECK.