As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CHAFING DAMAGE NOTED TO LEFT INBOARD FLAP NOSE RIB. MATERIAL LOSS RECORDED UP TO 0.015". INITIAL FLANGE THICKNESS WAS 0.06". ENGINEERING SUPPORT WAS SOUGHT FOR REPAIR PROCESS. AIRCRAFT REMOVED FROM SERVICE REPAIRED IN ACCORDANCE WITH EA AWAC-CRJ257-02062.