As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND LEVEL 2 CORROSION ON THE FWD CARGO DOOR CUT OUT LOWER FRAME NUT PLATE SUPPORTS (6EA). MX REMOVED SURFACE CORROSION FROM SUPPORTS AND REPLACED NUTPLATES IAW EMB 170 SRM 51-10-03. A/C REMAINS IN CMH FOR HEAVY CHECK COMPLETION.