What was found
DURING C CHECK, NR 4 SPOILER NR 2 HINGE CUT OUT ON LT WING TRAILING EDGE CRACKED. STOP DRILLED CRACK DIAMETER 0.250 INCH AND FABRICATED REPAIR DOUBLER IAW SRM 51-10-1 AND 57-30-4 FIG 10, NDT CONFIRMED STOP DRILL END STOP CRACK IAW NDT MM CH 51-00-00 PART 6 FIG 25. TREATED AND PRIMED PARTS IAW SRM 51-10-2. INSTALLED REPAIR DOUBLER AT NR 4 SPOILER NR 2 HINGE CUT OUT ON LT WING TRAILING EDGE IAE SRM 57-30-4 FIG 10 AND 51-30-2.