As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - DURING C-07 CHECK A 2 INCH CRACK WAS FOUND IN AFT CABIN INTERCOSTAL FITTING AT BS 1681.8, BETWEEN STR 12 LT AND STR 13 LT. MAINTENANCE REMOVED CRACKED INTERCOSTAL FITTING AT BS 1681.8, BETWEEN STR 12 LT AND STR 13 LT; FABRICATED A NEW REPLACEMENT FITTING IAW DWG 146N8748; INSTALLED REPAIR PART IAW B757-200 SRM 51-40-02, PG. 1.