As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH TO KFTW, CREW NOTED A PRESSURIZATION BUMP AND THEN AN ODOR OF SMOKE THROUGH THE COCKPIT VENTS. CREW SELECTED BLEED TO 'RAM' AND SMELL SUBSIDED. MAINTENANCE TECHNICIANS GAINED ACCESS TO ACM COOLING TURBINE AND FOUND TURBINE SEIZED. ACM REPLACED IAW IAI 1124A AMM CH 21-50-01.