As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN DECK SKIN UPPER SURFACE CORRODED STA 1690 TO 1710, RBL 50. MAJOR REPAIR ACCOMPLISHED: AFTER BLEND OUT FOUND SEVERAL AREAS OUT OF LIMITS PER SRM. A SRM DOUBLER RPR WAS INSTALLED PER INSTRUCTIONS ON EA PD57-53-120 WITHOUT DEVIATION. BOEING APPROVED THIS AS A PERMANENT REPAIR AND A FAA 8100-9 WAS RECEIVED DATED APR 27TH 2011.