As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACCESS CUT-OUT FLANGE 641GB HAS FRETTING DAMAGE. REMOVED FRETTING DAMAGE FUEL CELL CUT-OUT FLANGE 641GB. ORIGINAL THICKNESS MATERIAL .202. REMOVED LESS THAN .002 MATERIAL IN 1/2" X 18" AREA. AREA WORKED REMAIN WITHIN LIMITS, IAW 767 SRM 57-20-01/201 SHEET 3 DETAIL 3 AND STEPS 1-10 SHEET 1. REMAINING MATERIAL THICKNESS.198".