Airbus Lounge What is that noise?

[andrew_miller]

When descending at around 2-3 thousand feet there is a whoosh/almost light flushing sound on the A320 family(not sure if the other types do it). I’ve asked numerous people including a check airmen and no one knows. It only happens on descent. What is that sound?

That sound you're hearing during descent on the A320 family is likely the sound of the cabin pressurization system adjusting as the aircraft descends to lower altitudes. It's a normal part of the aircraft's operation and helps maintain a comfortable cabin environment for passengers.

 

[DPApilot]

I have a few thousand hours in this damn thing and I never noticed it until I was sitting in the jumpseat commuting home thanks to this thread… Thanks for ruining my commutes now. Now to see if I can remember to listen on the bigger Bus tomorrow.