What was found
DURING WINGLET MOD, THE LT WING REAR SPAR LOWER CHORD WAS DAMAGED BY TOOLING. A GOUGE WAS BLENDED SMOOTH AND TREATED FOR CORROSION PROTECTION. THE BLEND AND TREATMENT WAS APPROVED BY BOEING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING WINGLET MOD, THE LT WING REAR SPAR LOWER CHORD WAS DAMAGED BY TOOLING. A GOUGE WAS BLENDED SMOOTH AND TREATED FOR CORROSION PROTECTION. THE BLEND AND TREATMENT WAS APPROVED BY BOEING.