As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MINOR REPAIR - DURING C-18 CHECK A .5 INCH CRACK WAS FOUND ON LOWER LEG OF STIFFENER INSIDE THE NR 3 FLAP TRACK FAIRING, NEAR AFT END OF FAIRING WBL 191. MAINTENANCE REMOVED CRACKED STIFFENER AT WBL 191; FABRICATED A NEW REPLACEMENT STIFFENER; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02 FIG 3, 4, 6 & 7.