What was found
CREW REPORTED WHILE THE APU BLEED AIR WAS ON, THERE WAS A STRONG BURNING OIL ODOR COMING FROM THE AIR VENTS. MX INSPECTED THE BLEED SYS AND FOUND THE WATER SEPARATOR COALESCER SOCK TO BE DIRTY AND REPLACED IT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED WHILE THE APU BLEED AIR WAS ON, THERE WAS A STRONG BURNING OIL ODOR COMING FROM THE AIR VENTS. MX INSPECTED THE BLEED SYS AND FOUND THE WATER SEPARATOR COALESCER SOCK TO BE DIRTY AND REPLACED IT.