As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE-C, FUSELAGE SKIN AND INTERNAL DOUBLER BS 1096 TO 1112 STR 18R TO 20R CORRODED BEYOND LIMITS ON UPS NRC 588666. FABRICATED REPAIR SKINS AND SPLICE DOUBLER IAW SK 974-957. INSTALLED REPAIR SKINS AND DOUBLER IAW DHC SK 947-957 REF ENGINEERING FILE NR 727-53-1841.