Right turn signal issue

[thecodeman]

Here's one that has me stumped at the moment...

Both park lamps work.
Left turn signal works fine.
Right turn signal makes noise, but the side marker nor the park lamp come on at all.
Additionally, the indicator bulb for the right turn signal is out/missing. Would this cause an issue?

Just looking to see if there's a common place I should look for an issue like this before trying to replace parts.

Thanks -