Originally Posted by
spuncy
Thanks guys for the info, after more depth reading I just figure it related safety in regard to tail pipe.
However if you think I am wrong, I am so happy to be corrected.
Correct, although we have changed our procedures over a year ago after consultation with Airbus as statistically speaking tail pipe fires on shutdown are so unlikely that we can afford to keep the APU bleed off at engine shutdown and put it on if/when needed.