As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - DURING C-CHECK, FOUND LEFT WING AILERON UPPER SKIN WITH DENTS AND LOWER SKIN WITH DELAMINATION AT WBL 480. REPAIRED LEFT WING AILERON P/N 65-46454-23A, S/N 555 DUE TO DELAMINATION BETWEEN WBL STATION 471 AND 486 IAW COOPESA EO NR COO-CMP-3-57-259-01 DATED JUNE 14, 2001 AND DOCUMENTED ON FAA 8110-3 FORM. (M)