Originally Posted by
RCyyz
Per
this page the original fleet of AC 343 have all been released to other airlines. I'm not sure about this, but it's possible that AC never actually sold the aircraft but rather leased them out. So (pure speculation here) it's possible that some of the leasors have not paid the final $24 mil of lease payments to AC or that the lease was structured in such a way that if conditions A & B happened then lease payments of $24 mil would not be due. In either case, AC would have to write off $24 mil of expected revenue.
I bet they were at the end of their lease to the other operator and being returned and AC dumped them. 340's have terrible resale value from what I've read.