I would make 2 animations.
Animation 1 = ship that breaks up towards complete transparantion. Lets say, if the nose breaks off, this animation has on that place nothing.
Animation 2 = all the parts. Animation speed set to zero.
When the ship gets destroyd. You start animation 1.
When animation 1 is at frame 0, spawn the sprite with animation 2. Set its frame to the first part. Move it in a direction that you want to.
When animation 1 is at frame 1, spawn the sprite with animation 2. Set its frame to the second part ..
And so on.
Destroy object with first animation on animation end.
Destroy the spawn parts with a timer behaviour.
Ofcourse you will have to us 'once while true' with the frame comparing.