As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C-CHECK LT HORIZONTAL L/E UPPER AND LOWER SURFACE HAS CORROSION AROUND ALL RIVET HEADS AND SCREW HEADS. MAINTENANCE REMOVED CORROSION BY POLISHING LT HORIZONTAL STABILIZER L/E UPPER AND LOWER SURFACES IAW EC5530-01116. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.