As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED A STRONG ELECTRICAL ODOR AS NR 1 PACK WAS RUNNING, AND ODOR STOPPED WHEN NR 1 PACK TURNED OFF. ACFT LANDED WITHOUT INCIDENT. MAINTENNACE INSPECTED AND FOUND NR 1 ACM FROZEN. R & R NR 1 ACM, OPS TESTED WITH NO DEFECTS, AND ACFT APPROVED FOR RETURN TO SERVICE.