As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED MAINTENANCE VISIT, LEVEL 2 CORROSION WAS DISCOVERED ON THE LT WING OUTBOARD BOOST PUMP CUTOUT AREA. BLENDED OUT THE CORROSION, HOWEVER THE REMAINING MATERIAL THICKNESS WAS BELOW MINIMUM REQUIRED, AND THE CUT OUT OF MATERIAL WAS BEYOND SRM LIMITS. FABRICATED AND INSTALLED REPAIR FILLERS IAW SRM.