In article , Frode Berg wrote:

I've just assumed the bass would not fit in my Arrow until yesterday.
I took it to the hangar, and found out that it fits perfectly though the
door, but I need to be able to fold the back seat to avoid it obstructing
the flap and trim.

Frode,

Turns out, it's fairly easy to remove the rear seats from an Arrow. There
are 4 attach points. The rear 2 are spring-loaded and you just pull
forward/up. The front 2 are on a slide and come out easily when the rear
mounts are up. No tools required.

HTH,

Morris
(BTW, welcome back. I remember you used to post a lot around here)