As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6064 RIC - EWR, CREW REPORTED SMOKE IN COCKPIT FROM DASH BOARD FOR 3 TO 5 SECONDS THEN STOPPED. EWR MX FOUND RMU NR 2 BURNT. MX REMOVED AND REPLACED RMU NR 2 AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.