Thanks for the question.
Through you, Mr. Chair, we're working actively with the industry and the stakeholder group that is proposing the use of alternate runway surfaces. We understand very much the need for aircraft to service the north and are very much aware of the issue that Mr. Davidson raised with respect to the Boeing 737-200.
There is an issue that requires both certification of the runway surface type and also certification of the aircraft itself to land on those runway surfaces. That requires involvement from the original equipment manufacturers and occasionally can necessitate additions to the aircraft manuals that permit the flight.
So far, OEMs have not indicated a willingness to look at that side of the issue in great detail, but we are working with them actively. It is a very important issue that needs to be addressed in order to continue to permit the safe operation of air assets in the north.