PPRuNe Forums - View Single Post - Bad news for us in the industry

1st Feb 2021, 11:07

#35 (permalink)

LTNman

Join Date: Jul 2002

Location: In the sticks

Posts: 9,866

Likes: 0

Received 0 Likes on 0 Posts

blue up

Just asking but what are those filters doing when the aircraft is on stand with the engines off?