As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, FOUND FS 420 HAS CORROSION AT THE LOWER FLANGE BETWEEN L5R AND L6R. REMOVED CORROSION IAW SRM 51-1-8. FOUND OUT OF LIMITS IAW SRM 53-2-0. CUT OUT DAMAGED AREA, FABRICATED FILLER AND DOUBLER IAW 53-2-1. PARTS HEAT TREATED ATI P.O. 2407. TREATED AND PRIMED IAW SRM 51-1-8. INSTALLED REPAIRED IAW SRM 53-20-10.