What was found
LCQ - MAJOR REPAIR - DURING C-17 CHECK A 5 INCH CRACK WAS FOUND IN FUSELAGE SKIN AT BS 940, STR 20 LT. MAINTENANCE REMOVED EXISTING REPAIR DOUBLERS AND CUT OUT DAMAGED AREA OF SKIN AT BS 940, STR 20 LT; PERFORMED HFEC INSPECTION OF CUTOUT TO VERIFY NO CRACKS EXIST; FABRICATED 3 EACH FILLERS, A REPAIR DOUBLER, AND A TRIPLER; INSTALLED REPAIR PARTS IAW AWA ER 03-5361-04166-RC1.