Issue papers and concern papers are a normal process, going back and forth. We have been transparently included now with the process we're going through, as far as the recertification of the MCAS software, the flight control software, is concerned
We understand and we see that concerns are raised and that they basically go through an evolution to get to a common understanding or ground. Without knowing what the understanding was truly aligned with, particularly with respect to the individuals involved on the Transport Canada side, I couldn't comment beyond that.