Some US carriers are posting record profits without the Max because they’ve cancelled under performing flights, consolidated others and re-distributed aircraft. I don’t think AC has that same luxury due their route structure and our population. They have moved aircraft around to make up for the lost summer seats but that demand will drop off in about 30 days. The big hurdle in my opinion is how to bring the Max back if ever or just return them to Boeing and find some NG’s or other aircraft with a good safety record.