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IFLY_INDIGO
21st Jul 2015, 14:28
During engine starts, packs automatically turn off. Only cabin fan is working for recirculation.

I have experienced exhaust fumes many times during engine start.

I wish to know how exhaust fumes enter the cabin/cockpit and Is there any trick to avoid it?

Goldenrivett
21st Jul 2015, 14:40
I wish to know how exhaust fumes enter the cabin/cockpit
This was discussed at great length recently.
http://www.pprune.org/tech-log/563271-a320-exhaust-smell-cabin-area.html

Keep up Pike!

safelife
21st Jul 2015, 14:54
Avionics venting.