As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE WORKING SB 601R-53-067 FOR THE MODIFICATION OF THE OVERWING PRESSURE FLOOR - FOUND THE INTERCOSTAL AT FS 460 RBL 9-18 CRACKED AT LOWER FLANGE. REMOVED CRACK DEBURRED AND REMOVED SHARP EDGES IAW REO 601R-53-41-1089, REV -- NDT FS460 RBL9-18 FLANGE CUTOUT IAW NDTM 51-20-06 NO DEFECTS NOTED. FABRICATED DOUBLER IAW REO 601R-53-41-1089, REV. INSTALLED DOUBLER IAW REO 601R-53-41-1089 REV