As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT AILERON UPPER SURFACE DELAMINATED SUBSTANTIALLY FROM WING RIB 19 TO 22 AND WIDTH OF APPROXIMATELY 4-5 INCHES. THIS DEFECT OCCURRED WITH NO WARNING. THE AREA IS INSPECTED DURING PREFLIGHT AND POSTFLIGHTS AND THE AIRCRAFT HAD BEEN IN MAINTENANCE FOR DUE LIST ITEMS ONLY A WEEK EARLIER. LAST C-CHECK AS AT 2973.0 AFTT.