PPRuNe Forums - Cool brakes with water ?

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- - Cool brakes with water ? (https://www.pprune.org/tech-log/602498-cool-brakes-water.html)

Vendee

2nd Dec 2017 11:44

Quote:

Originally Posted by Skyjob (Post 9976333)

During landing, YES
During water being prayed onto them at an angle, NO

My reply (to a previous comment) was specifically referring to landing or taxying.

Jet II

2nd Dec 2017 13:25

Quote:

Originally Posted by Uplinker (Post 9976345)

I have not seen this brake cooling "procedure” written anywhere in the A320, A321, or A330 manuals I have read. Perhaps it is allowable and is detailed in the engineer’s manuals, but it sounds very risky to me. Firemen have detailed procedures for dealing with brake fires safely because of the risk of flying debris. You won’t catch me doing it on a routine turnaround, even with training and protective gear.

Its never been in any Engineering Manual that I have read (and I have read quite a few) - in fact we were trained not to spray water onto brakes during a brake fire due to the risk of explosion.

wiedehopf

2nd Dec 2017 14:12

the risk of explosion comes not from spraying water but from the brake fire.

you should not spray water on the brake fire because that necessitates going closer or using a rather heavy beam of water.
that's my guess at least.

anyway the picture of the routine operation is described as an Ilyushin 76.
for that plane a procedure may very well exist and no one here knows about it.

as long as you don't use a bucket of water but instead use rather fine mist probably nothing will happen.

@kuobin can't you just ask maintenance what's going on?

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