As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-21 CHECK A 1 INCH CRACK WAS FOUND IN CLIP ANGLE ON BOTTOM OF INTERCOSTAL AT STRINGER 16 LT, BS 344. MAINTENANCE REMOVED THE CRACKED CLIP ANGLE BS 344, STR 16 LT; FABRICATED A NEW REPLACEMENT CLIP ANGLE PER DWG 69-16509; INSTALLED REPAIR PART IAW B737-200 SRM 51-30-02 FIG 7 & 11 PG 1.