What was found
DURING C-CHECK INSPECTION FOUND AFT STAIR LT WEB LIGHTNING HOLES CRACKED BS 1243, WL172. REF FASI NR 86369, STOP DRILLED CRACK IAW SRM 51-10-1 AND INSTALLED DOUBLER REPAIR IAW SRM 51-40-2, FIG 1.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK INSPECTION FOUND AFT STAIR LT WEB LIGHTNING HOLES CRACKED BS 1243, WL172. REF FASI NR 86369, STOP DRILLED CRACK IAW SRM 51-10-1 AND INSTALLED DOUBLER REPAIR IAW SRM 51-40-2, FIG 1.