As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN THE CREW WAS AT 2000FT ON THE FINAL APPROACH, THEY ADDED POWER & THEN THEY NOTICED SMOKE FORMING IN THE COCK PIT. THE CREW THEN DECIDED TO PREFORM A EMERGENCY PROCEDURE AND SAFELY LANDED IN KFLL. REPLACED SEIZED ACM. ALL OPS AND LEAK CHECKS GOOD. WORK PERFORMED IAW CH350 AMM 21-52-13.