I'm assuming the root system isn't strong enough to suck up nutrients into the plant, so I added a little lime because I thought there was an iron deficiency. Any other ideas? I removed the air layer at a little over 3 weeks.

Is it an old leaf?
If yes, you cannot help it, the young plant will abandon it. Give it some time and wait for the new growth, when that one has a problem, then you have a problem.
I wouldn't worry yet

Plant is in shock, wilted.  Place in the shade if you haven't already, slowly allowing it to get more sun as time goes by. As you guessed roots haven't quite caught up with top growth.

Dolomite lime is for Calcium and Magnesium, and to raise pH.  I add approximately 1 Tablespoon dolomite per gallon of pot, I use Pine Bark media.

If your media is fast draining and not holding water, fertigate with 1/2 tsp of all purpose miracle grow+1/4 tsp of Epsom salt per gallon of water. You will have good growth and figs when timing is right.

Good Luck, lots of us have been where your at.

Myself i remove large leaves and leave the newer leaves. I was getting water from motger tree now its depending and new root system to get water to all the leaves. Less leaves less water needed and less stress. Also i remove all the leaves from airlayer after two weeks of starting it then let them all frow back fresh. Then remove airlayer only after roots are full.

Leaves take energy and moisture. Moisture is only provided by roots. By removing leaves the tree stays in good health.

Hi Members,

I started two air layers on Aug 1 and reviewed on Sept 4 to see if more roots or not, Unfortunately I did not see any roots at all. Somebody told me it could be due to the weather suddenly not hot enough. On the other hand, If the air player started in May/June, more roots can be expected in less than a month. Besides, fig tree is about the time to slow down its growth, hard to expect strong roots in less than 6 weeks. If that correct ?

In case if got no roots before dormant, should I leave it there for doing nothing, wait still next spring then cut the branch from the parent trunk and pot in a container for new growth ?

Try soaking the roots in B-1 solution for several hours just prior to planting to reduced transplant shock.
Another intervention would be applying mycorrhizal granules directly to the roots at transplant time. 
Remove all but a few leaves and keep out of direct sun.

Yes, keep it out of the sun in the beginning. Keeping it in the shade until it recovers from the shock will be easier on it. Once it looks healthy and is growing again, you can harden it off to the sun again.

Direct sun will just dry it out and cause it to wilt more right after shocking it...possibly die.

After three weeks, I would imagine that it's over the shock though. Pics of the whole plant might be helpful to see what's going on.

Hi ross,
Were there lots of roots ?
You can help the small tree and remove the bottom leaves and leave the 3 or 5 top leaves.
I water my air-layers more. I like to have the pot on a plate and let some water stay there.
My air-layers tend to lose the tiniest leaf and the bottom leaves.
You can wait and the tree will do the same but it will loose a bit more energy and water.
Keep the tree with one hour of direct sun in the morning and then in the shade - but not in the dark .
After 2 weeks of leaves perking and wilting during the day, they will stay perked. Then try to give it more sun gradually.
At this time of the year, the air-layer won't have the time to grow new leaves - one month earlier it would have.
Keep the small tree well cared and she'll be good.
Good luck !

They really don't look wilted, just some leaves are discolored & spotted, but I removed some lower leaves and put them in the shade as you guys suggested. I'll be sure to check back if there's any further problems-- thanks for the help. This community is pretty awesome.

I don't understand what the hurry is to remove these air layers at 3-6 weeks.I usually
leave mine on a minimum of 8 weeks,some get lost out there and hang 12 weeks.By then
the roots are the same color as the rooting media,the initials are gone,replaced by mature
root.

Imo it's never a good idea to float an air layer prior to planting.Plant it and flood it,
I've had 12 week old air layers fall apart on me soaking them in a kelp/fish solution
prior to planting.I try not to remove them from the air layer container until they're
bone dry.

Paul : I have seen in the forum that most people got roots in 24 days or less than a month, so I was in a hurry to check mine in 5 weeks plus it is my first time to do air layering. Anyway, I will let it go till end Sept or early Oct to see what happen. Thanks for your responds.