As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DURING DESCENT SMELLED SMOKE, DECLARED AN EMERGENCY, LANDED AT DESTINATION WITHOUT INCIDENT. MX WAS DISPATCHED TO ACFT. MX DEFERRED NR 1 PACK SYS AND RETURNED ACFT TO SERVICE. MX CONTROL ROUTED ACFT INTO MX TO REMOVE AND REPLACE NR1 PACK ALL OPS CHECKS WERE COMPLETED AND SYS CHECK GOOD.