As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HEAVY CHECK FOUND FWD FUSELAGE FR 17 SHEAR CLIP BETWEEN STR 27L AND 28L HAS CORROSION. REPLACED SHEAR CLIP PN 170-03870-001, IAW EMB 170/175 SRM 51-41-02. SEE AAR NRC 4500833-1000-0144666. AC REMAINS IN YQG FOR COMPLETION.