As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS IN FOR HEAVY CHECK *** LEVEL 2 CORROSION WAS FOUND ON THE LT WING NR 1 SLAT SEAL HARDWARE. MAINTENANCE REMOVED AND REPLACED THE NR 1 SLAT SEAL HARDWARE IAW EMB 170/175 AMM 57-41-09. REF: SCREW P/N NAS1102-06-5 AND NUT P/N MS21042-06. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.