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 NUMBER 6 FLAP DRIVE TORQUE TUBE CORRODED. MAINTENANCE REMOVED AND REPLACED THE LEFT NUMBER 6 FLAP TORQUE TUBE IAW EMB 170 AMM 27-51-03. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.