Engine master off!
Hi!
Gentlemen!
I just finished my first upgrading training,
I'm curious of one thing what my instructor point.
He said,
"sequence of turn off engine is #2 then #1"
the reason why cause of ground staff approaching
Right side first for offload cargo."
But,
FCOM said(I fly a321),
"ENGINE MASTER switch 1 and 2---------OFF"
Please help me,
which sequence is better ,explane me why?
(I appeciate if you attach some technical reason,also)