As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - DURING C-CHECK, SKIN CRACK AT STRINGER 19R AT BS 765. REPAIRED FUSELAGE SKIN FROM BS 760 TO BS 769 BETWEEN STRINGER 18R TO STRINGER 20R IAW SRM 53-30-3 FIGURE 07 AND SRM 53-10-3 FIGURE 1. THIS IS A CLOSING ACTION FOR MRR NR 01021. (M)