As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION FOUND EXISTING FUSELAGE SKIN REPAIR DOUBLER AT STA 410 AND STR 21 RT HAS TOOLING SET MARKS AND DOES NOT COMPLY WITH SRM 53-30-3, FIG 3. REF FASI NR 86628, CUT OUT DAMAGED AREA DIM 13.75 X 10.75. INSTALLED DOUBLER REPAIR IAW SRM 53-30-3, FIG 3.