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 PASSENGER CABIN AT BS 257 TO BS 267 BL ZERO WL 208 CHANNEL WITH CRACK. L = 0.50 INCH. W = 0.005 INCH. REPLACED THE PASSENGER CABIN AT BS 257 TO BS 267 BL ZERO WL 208 CHANNEL IAW BOEING SRM 51-10-1 PAGE 8 AND SRM 51-30-2. (X)