Ended up building a new stringer for each side of the bottom pull down attic stairs.
Needed to fabricate a new pivot hinge for one side. I removed the original pivot hinge quite some time ago when the stringer busted and I fabricated a temporary pivot hinge with long tails to make the stringer workable for the time being which was quite a few years ago. Must have lost the original somewhere or it was broken. 

Anyhow I put on the pivot hinges and connected them to the stringers above. Everything works fine except the new pivot hinge is off somewheres because when I fold up the new stringers to the ones above the new pivot hinge side does not allow the stringers to fold flush with each other. The new stringer section is usable for going up and down except it does not fold properly.

I will get around to finding the problem on the pivot hinge and remedy the problem another day.

What next?
Have a rear 12x12 foot deck that needs some decking replaced. A new deck board here and there. Also need to take apart an old 3x4 foot elevated planter box that is sitting on the deck.
Built the deck about 16 or 17 years ago and very rarely used it after the first couple years. Only thing it is used for now is for my garden planter boxes which I wrote about in my blog some years ago. I gave up on growing vegetables in the planter boxes and have been planting perennials in the planter boxes.

After that I will move on to some interior projects. Got the outside projects done before hot weather set in.