What was found
RH WING INBOARD FIXED LEADING EDGE LOWER SKIN PANEL AT WS 158.25 HAS A CRACK IN LEADING EDGE OF THE PANEL THAT IS APPROXIMATELY 0.400 INCH LONG.<[01] CRACK VERIFIED PER BOEING NDT MANUAL PART 6 51-00-00 PROCEDURE 23; END LOCATED AND MARKED;[02] CRACK VERIFIED PER BOEING NDT PART 65 51-00-00 PROCEDURE 23. END LOCATED AND MARKED;[03] CRACK VERIFIED PER BOEING NDT PART 6; 51-00-00 PROCEDURE 23. END LOCATED AND MARKE;[04] INSPECTED PER SRM 57-41-01 .. REF DRAWING 116A2132. DETERMINED TO BE A PRODUCTION BUTT JOINT WITH NDT CRACK INDICATING JOINT. NO ACTION REQUIRED. .