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Old 01-05-2026 | 07:19 AM
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Default 320 Fume events

Are you all having an alarming number of fume events on the fleet? Not just the older aircraft but even the brand new 321neos?
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Old 01-05-2026 | 08:28 AM
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What exactly is a "Fume Event"? Does that smell of jet fuel that you sometimes smell count or is it something worse?
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Old 01-05-2026 | 08:45 AM
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Originally Posted by SkyGodKing
What exactly is a "Fume Event"? Does that smell of jet fuel that you sometimes smell count or is it something worse?
no, dirty sock/burning oil smell in flight. At a different airline and wondering if it’s an industry trend.
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Old 01-05-2026 | 08:55 AM
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Originally Posted by Iflythe72
no, dirty sock/burning oil smell in flight. At a different airline and wondering if it’s an industry trend.
It is an industry trend and a known problem. Airbus has been working on it for a while, new aircraft have hardware designed to prevent it. Some older ones are getting retrofitted.
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Old 01-05-2026 | 08:58 AM
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Only after having the enchiladas 🤷🏻‍♂️
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Old 01-05-2026 | 08:59 AM
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Originally Posted by WiFly
It is an industry trend and a known problem. Airbus has been working on it for a while, new aircraft have hardware designed to prevent it. Some older ones are getting retrofitted.
I hope. Most of our problems are happening on brand new 321neos
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Old 01-05-2026 | 09:31 AM
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Originally Posted by Iflythe72
no, dirty sock/burning oil smell in flight. At a different airline and wondering if it’s an industry trend.
Have only had 1 at Spirit and none at AA in over 5 years on Bus.
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Old 01-05-2026 | 10:30 AM
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It's my understanding that most of these are driven by either overfilled oil or hydraulic fluids. AA had a pretty big push on this a few years ago that resulting in some actions being taken to curb the events.

Also, we are all breathing fumes at low concentrations as seals are never 100% perfect especially at higher pressures. Some oil and hydraulic fluid is always getting atomized into the pack air we breathe.

I read a study on ALS and pilots were like the #2 or #3 profession to get it, it's a terrible disease. Truck drivers as well. Something about the diesel particulate in the exhaust. An increase of ~50% from the baseline.
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Old 01-05-2026 | 11:17 AM
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Originally Posted by Name User
It's my understanding that most of these are driven by either overfilled oil or hydraulic fluids. AA had a pretty big push on this a few years ago that resulting in some actions being taken to curb the events.

Also, we are all breathing fumes at low concentrations as seals are never 100% perfect especially at higher pressures. Some oil and hydraulic fluid is always getting atomized into the pack air we breathe.

I read a study on ALS and pilots were like the #2 or #3 profession to get it, it's a terrible disease. Truck drivers as well. Something about the diesel particulate in the exhaust. An increase of ~50% from the baseline.

What about the 787?
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Old 01-05-2026 | 11:27 AM
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Originally Posted by SkyGodKing
What about the 787?
I believe the 787 uses a bleedless pneumatic system and thus does not suffer from these issues.
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