As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C EQUIPMENT COOLING OUTLET FOUND ONE EACH FASTENER HOLE CRACKED AT SKIN APPROX .125 INCH LONG RUNNING FWD & APPROX .375 INCH LONG RUNNING TO EDGE. FUSELAGE SKIN AT BS 575 EQUIPMENT COOLING OUTLET REPAIRED AS PER UPS EO B747-5330-6909 APPENDIX B.