Whenever you are not on reserve. Which could be 1 month or never. That being said, you won't be handed a schedule like that. You have to manipulate it through the SAP, and then open time after that.

Also if we ever get properly staffed it will be a little more difficult to get these results. Not impossible, but not as easy as it is right now.

Critical days are days when there are not enough pilots to staff the flying for that day.