> These incidents are literally called "fume events"
Your first FAA link says that these 'fume events' are rare: "The report found that the rate of cabin air quality events is less than 33 events per million aircraft departures." This is about one event every 30,000 flights.
I have a pretty sensitive sense of smell, and I regularly smell oil/smoke/hydrocarbon smell after they're starting the engines. It also sticks on your clothes after the plane ride, and I'm quite sure it's not just stinky seat smell.
It's probably good old "normalization of deviance". Smelling exhaust/fumes is common enough that it would not get reported unless someone has a medical event. And reporting it would require investigation and downtime which management would frown upon.
I usually smell it too. I've noticed its when they switch from the air handler provided by the jetway (big yellow hose) to the plane's onboard system. Perhaps there's some sequencing procedure that the staff is moving through too quickly trying to get the plane out on time, or it's just an acceptable amount of cross-contamination.
I don't have a sensitive sense of smell and I still smell it.
I also don't have a pretty sensitive smell and I smelled it a lot, especially cherosene like while boarding and before or during taxing, but later gets better.
it happened to me only on certain planes or cheaper airlines and i never managed to correlate it enough to plane, situation or airline.
the smell is very pungent and scratches the throats, typical fulel /exhaust like.
I learned about the air system passing through the motor because of the safety incident case, where the safety for engine malfunctioned and junctioned high temperature engine oil into the air system when triggered, causing cabin and pilot problems breathing and visibility.
does anybody know which conditions usually trigger this fuel like smell and perhaps which engine models are more prone to such condition?
the fact that it goes away when flying let me me think something related to systems used when on ground
There are more than 100,000 flights per day. So not that rare at all.
https://www.cbsnews.com/sanfrancisco/news/study-shows-toxic-...
If you think of the last 10 flights you were on, how many had the gym sock smell? That's the real occurence rate. I'd say in my experience across all airlines its around 7/10 flights I can detect via smell a fume event.
There is one specific plane type (Airbus A320) that has significantly more fume events than all other plane types, suggesting that plane type or associated engine has a design or procedural flaw.
Since airlines consolidate on specific types, it is possible that some travelers experience this problem often and others very rarely.
Through no choice of my own, I seem to only fly on Boeing 737s, but the one recent time I was on an Airbus (A321neo) there was a distinct exhaust odor upon engine startup.
In my experience, a large fraction of flights have very stinky air during a substantial portion of the time from when the engines start until takeoff. Whether this is “gym sock” or something else has never been entirely clear to me.
I think airplanes reek too, but mostly because the cleaning done on the seats/cabin is pathetic by overworked and underpaid cabin crew, the average American doesn't wash their asshole (no bidet culture in the USA) so they have smeared shit stains on most of their undergarments, standard BO, etc
Coincidentally, when I am flying anywhere in Asia, I get none of this. I'd unironically rather be on an Indian airline for most flights because for all the flack that Indian people get about cleanliness, they're far more likely than the average gringo to have used a bidet at some point in their lives.
I’ve never noticed this in 35 years and I have an unusually sensitive sense of smell.
I don’t think I’ve noticed gym socks smells, but I can certainly smell kerosene basically every time when outdoors at the airport, and often in the plane.
43 years for me, and in addition to being notably smell-sensitive, I’ve also taken a probably close to 500 long haul flights
Of the last 50 flights I took, none had gym sock smell.
If anything smelled it's usually due to a passenger. But nothing from the aircraft itself
We're not talking about stinky passengers, those are normal, expected smells :)
Politely, I don't believe you haven't noticed the smell - this statistically is impossible when at an airport with multiple planes. You can smell it daily, at any airport terminal of your choosing, impossible to ignore when closer to the gates. It's a smell powerful enough to not get eaten by the various encapulation, ozone generators, and air fresheners used in public commerical environments like airports. The smell comes through from the planes and gangways into the terminal itself.
Next trip: With a clear nose, smell the air at the airport entrance and then compare this with the smell closer to your gate. The contaminated airs smell it's very similar to a wet locker room or gym bag that was left for days without cleaning. You won't ever miss it again, and your stat will flip to detected in 50 out 50 visits.
I assure you I'm very sensitive to smells and I haven't smelled anything like that in a plane
That sounds awful; it means 3+ times a day a whole plane of a passengers is getting sprayed with this stuff.