As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE LEFT MAIN LANDING GEAR LOWER SIDE STAY NUT CORRODED. MAINTENANCE REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR LOWER SIDE STAY NUT IAW EMB 175 AMM 32-11-05. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.