As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GND SLR FAULT MSG. SPOILERON FAULT MSG. PINNED AND OHMED WIRES FROM 2AICN/7A-7B (SECU) TO DCU 2A1WA/6G AND H. CHECKED FOR POWER ON PINS 2A/CN/C4, 5, AND 6. CLEANED PINS ON SECU RACK AND DCU RACK REINSTALLED ORIGINAL DCU AND SECU IN ORIGINAL SPOTS. OPERATIONAL CHECK NORMAL IAW CRJ MM 27-61-05, 27-64-00, 27-65-00.