What was found
OIL/GAS/GREASE ODOR ON DESCENT AND WHEN SWAPPING BLEEDS FROM APU TO ENGINES. OILY AND MOLDY ODOR WHEN TRANSFERRING BLEED TO APU, FLT 4373 DEL 42 MINS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OIL/GAS/GREASE ODOR ON DESCENT AND WHEN SWAPPING BLEEDS FROM APU TO ENGINES. OILY AND MOLDY ODOR WHEN TRANSFERRING BLEED TO APU, FLT 4373 DEL 42 MINS.