As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HAD A FUME/ODOR EVENT ON DESCENT PASSING THROUGH FL 280 FOLLOWED THE ELEMINATION OF THE ODOR/ FUMES QHR PROCEDURE ODOR EVENT AWAY BY TURNING PACK 1 OFF-PER TSM 05-50-00-810-821A T/S THE FUME EVENT FOUND THE SOURCE TO BE PACK 1 SEE LOG PAG 329044002 FOR CORRECTIVE ACTION