As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI - DURING DESCENT AND UNTIL SHUTDOWN, THE CREW REPORTED A STRONG SMELL COMING FROM THE ACM'S. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE LEFT AND RIGHT RECIRCULATION FAN FILTERS. OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.