[Max Cow Disease]

Ryan touched on pretty much all of it quite beautifully. There are contractual and legal headaches presented by raising the age to 67, as well as a bit of pushback on any sort of slippery slope that will continue enabling older and older active crew members to occupy important seats. As he mentioned, it also behooves aviation's biggest labour groups to resist such short term increases to the pilot supply. The industry got itself in to this mess with decades of piss-poor wages and is now finally paying a bit of penance for it, and many pilots aren't eager to simply allow airlines to rectify this mistake by raising retirement ages or reducing crew member requirements on long-haul flying (another prevalent movement in some parts of the industry).

Also, a quick note on all the 737 MAX talk. It's true that Boeing's been exposed for some shoddy practices (rightfully so) and that they need to reign certain aspects of their operation in, but on the whole the product is still solid. Air Canada operates a diverse widebody/narrowbody fleet and of that entire fleet the 737 is the most reliable on a day to day basis in terms of nuisance maintenance issues that affect serviceability. Some of that can be attributed to them being newer than much of the fleet, but it's also due to the MAX being built on a time-tested (albeit dated) foundation. By comparison the A220, for example, has been riddled with engine issues that have kept airframes in the barn for varying lengths of time over the course of their lifespan.