As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BC4 CHECK DISCOVERED CORROSION ON THE LOWER SILL AT FR 68-3 INCHES AND Y1732 ON THE LT SIDE OF CABIN. MAINTENANCE REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-41-14 FIG 101. FABRICATED ANGLE AND FILLERS IAW SRM 53-41-14. INSTALLED FABRICATED REPAIR PARTS AT LOWER SILL FR 68-3 INCHES AND Y1732 IAW SRM 53-41-14 FIG 201.