As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - DURING Q-CHECK, FOUND THE LT WING NR 1 SLAT AUXILIARY TRACK UPPER INBOARD CORNER WITH CRACK LENGTH .50 INCH, WIDTH .50 INCH. REWORKED THE LEFT WING NR 1 SLAT AUXILIARY TRACK UPPER INBOARD CORNER AND WAS FOUND TO BE WITHIN LIMITS IAW BOEING SRM 57-20-1 FIG 1 DETAIL II. (M)