As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING SMELL IN COCKPIT DURING FLIGHT. TURNED OFF UNNECESSARY LIGHTING, SMELL DISSIPATED. / INVESTIGATED SMOKE SMELL IN COCKPIT IAW CRJ 700 FIM 21-21-00-810-806. COULD NOT REPLICATE. FOUND DIRTY FLIGHT COMPARTMENT DISPLAY COOLING AIR FILTER. REMOVED AND REPLACED FILTER IAW CRJ 700 AMM 21-24-10-000/400-801.