As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON INSIDE CABIN RT SHEAR WEB FRAME 69+16" STR 23R. REMOVED CORROSION ON RT SHEAR PLATE AT FRAME 69+16" STR23 RT FOUND TO BE OUT OF LIMITS AND REPLACED NEW SHEAR PLATE IAW SRM 51-42-11 PG 6 PARA 2A.