As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: MILD TRANSIENT ODOR DURING DECENT AT IDLE THRUST CATEGORY I ODOR NO CLEAR SOURCE NO IRRITATION JUST NOTED BY BOTH PILOTS DISSIPATED AFTER FIVE MINUTES. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. FOUND THE APU LUBE MODULE PACKING LEAKING AND REPLACED IT HOWEVER DURING THE LEAK CHECK MAINTENANCE FOUND OIL LEAKING FROM THE APU LOAD COMPRESSOR DRAIN AND THE APU WILL BE PLACED ON MEL **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)