As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING "C" CHECK INSPECTION, THE FOLLOWING WAS FOUND; I/B AILERON BETWEEN XA 565 AND SA 542 LOWER SKIN WITH CORROSION. REMOVED SKIN AND BONDED DOUBLER AND REPLACED BY SOLID SKIN BETWEEN XA 542 AND XW 563 IN ACCORDANCE WITH DRAWING NR AIPSAC-N784AL-07/05. ISSUED FAA FORM 8110-3 APPROVING THIS REPLACEMENT.