As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING DECENT BOTH CABIN AND COCKPIT HAD FUMES FROM PACKS. TURNED OFF ONE PACK AT THE TIME. BOTH PACKS HAD FUMES. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU BLEED CREATING AN OILY SMELL. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)