Oz, when you say you've never had a rolling air cell hatch, do you mean completely detached? I have some shipped turkey eggs in the bator now and they almost ALL had loose air cells, but not completely detached...they're developing so far (day 14).
Please forgive me, I am not Oz. There are different degrees of air cell damage. This is from Skeffling Farm
your hatch plan. They have to sit 24 hours always pointy end down, to see if the aircells will reattach, about half of them will in my experience. Either way, leave them in the egg carton for all 21 days of the hatch. Stop turning early at Day 16 not 18. It is possible to hatch chicks from eggs with detached air sacs when the cells never stabilized even after 24 hours, but were left upright for hatch. Make sure any turning is gentle, and no flatter than 45 degrees, more vertical is better!
Disrupted, shattered or ruptured air sacs are seen when instead of one bubble on the side of the egg, there are more than one. Handling must be very rough in these situations and I believe can be enough to kill the embryo in the first place. These should have the same treatment as the detached air sac eggs, but don't re-candle after 24 hours, these won't reattach. Just having the air bubbles rising to the top of the eggs at the fat end while hatching the eggs vertically in trays gives any chicks that do grow chance to pip into the air cell. Likelihood of a chick hatching is lower than intact displaced air cell eggs, but worth a try if the eggs show no sign of spoilage or leaking.
Rough shipping lowers hatch rate on fertile eggs. If they hatched at 80% at the breeders place they will hatch at 50% when shipped. The rate will go down lower depending on how much air cell damage there is.