What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK A 1 1/2" CRACK WAS FOUND ON THE L/H UPPER WING PANEL ATTACH ANGLE OUTBOARD OF THE PYLON, WS 204.40. MAINTENANCE REMOVED CRACKED L/H UPPER WING PANEL ATTACH ANGLE AT WS 204.40, FABRICATED A NEW REPLACEMENT ATTACH ANGLE, AND INSTALLED REPAIR PART IAW DWG 65C26309, B737-300 SRM 51-40-02, PG. 11, AND SRM 51-40-05, PG. 4-5, FIG. 2 & 3.