What was found
AT C-CHECK, LT LOWER EXTERIOR FUSELAGE-MAIN CARGO DOOR LOWER SKIN CRACKED .5 INCH AT FS 140.000. PERFORMED STOP DRILL IAW SRM 53-2-0 FIG 3, CLEANED, TREATED AND PRIMED IAW SRM 51-1-8B, PG 1-2, FABRICATED AND INSTALLED DOUBLER IAW SRM 53-2-0 FIG 3.