Originally Posted by
Mike_tanaka
Hi all,
in the last FCOM revision it is mentioned that it is not anymore required to wait for 5 minutes after landing to apply brake fans, as it has not proven to be efficient in preventing brake oxidation.
Just curious on how it can take such a long time to realize something like this. I mean, I have been flying the A320 for the past 20 years and this procedure of delaying the brake fan application has always been in place, as far as I can remember. It is quite interesting that it can take such a long time to gather enough data to change a procedure. Maybe this has also to do with different brake manufacturers?
The notes in the FCOM about oxidation is not the real reason. We asked Airbus and it’s because some of the A320 are equipped with different brakes who tend to create vibration when the brakes reach 200 degrees. That’s why the FCOM will tell you to set the brakes fan as soon as you vacate the runway. The 5 minutes delay is still applicable on most types. In our fleet only 3 aircraft are equipped with these brakes causing vibration issue. You can PM me if you want to read the official reply from Airbus.