As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON CONNECTORS & BACKSHELSL, AT LH/RH WING REAR SPAR CORRECTIVE ACTION: BACKSHELLS AND CONNECTORS OF LWP1 AND RWP1 POSITIONS AT LH/RH WING REAR SPAR WERE CLEANED AND REPLACED PER CRJ-900 ESPM 20-26-00 AND PER CRJ-900 ESPM 20-14-00. ALL TEST OK.