As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON AILERON HINGE FITTING ASSEMBLIES ON SETTLEMENTE AREA OF BODING JUMPERS (4E/A) ON LH WING AND (4E/A) ON RH WING ALSO CORROSION ON HARDWARE TO ATTACH THE SAME BONDING JUMPERS. BONDING JUMPERS P/N MS25083-2BB8 (4E/A) ON RH WING AND BONDING JUMPERS P/N MS25083-2BB8 (4E/A) ON LH WING WERE REPLACED PER CRJ 900 AMM 27-15-01"