What was found
LT WING LEADING EDGE PANEL BETWEEN ILES 173.6742 AND 330, INNER PANEL SUPPORT BEAM, UPPER CHORD HAS 8 EACH HOLES DRILLED INCORRECTLY. INTERIM REPAIR WAS ACCOMPLISHED PER REFERENCE ATLAS AIR XEO 57-122806 AND 747 SRM 51-40-04, 51-30-02 AND 51-10-02 FAA FORM 8110-3 ISSUED, PERMANENT REPAIR TO BE ACCOMPLISHED AT NEXT "C" CHECK.