Hi, the Jan Ors Pilot card permit me to roll one dice more for a ship at range 1, but is not specified primary o secondary weapon. Can I use this ability to improve a secondary weapon?

Yes - it can be used for any attack.

is it working on the CR-90 for all kind of attacks it can make?

is it working on the CR-90 for all kind of attacks it can make?

Yes. Unless it's said otherwise Jan's ability works on any ship.

is it working on the CR-90 for all kind of attacks it can make?

But remember that because of the stress token, it can only work for a single attack.