As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT THE CAPTAIN REPORTED, THERE WAS SMOKE/FUMES IN THE COCKPIT. THE SMELL WAS BURNING THEIR EYES. IT WAS FOUND THAT THE NOSE LANDING GEAR DOWN HYDRAULIC LINE HAD A PIN HOLE IN IT. HOLE WAS REPAIRED IAW DASH 8 MAINTENANCE MANUAL 20-50-55, THE FLUID THAT HAD BUILT UP WAS LEAKED AS WELL. LEAK AND OPS CHECK WERE GOOD.