As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT FOUND THE LEFT AILERON PULLY SUPPORT AT FRAME 15 AND STRINGER 21 LEFT TO BE CORRODED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPAIRED SUPPORT BY INSTALLING A DOUBLER IAW AE EO EM-5300-1704 PART B. THE AIRCRAFT WAS RETURNED TO SERVICE.