What was found
LEFT SIDE CTR WING JOINT AT FRAME 40 SKIN UPPER HOLE FOUND CRACK SIGNAL. COMPLIED WITH EA 6-5710-T0310491 PT1 , TITLE: WINGS - BASIC WING STRUCTURE - CRACK HOLES IN CENTER WING JOINT - FR40 LT/RT , REPAIRED THE LT UPPER HOLE OF CENTER WING JOINT AT FRAME 40 , MAJOR REPAIR IAW GMM 6-2-100.