According to Frequent Business Traveler, the FAA has issued another airworthiness directive concerning 737 Max aircraft after loose bolts in rudder control systems have been discovered. The directive includes the Max 8 variant operated by Air Canada. Link to article here.

I don't normally sweat stuff like this, but I must admit that after hearing about one issue after the other, and my growing annoyance over the microscopic lavs and reduced number of preferred seats, I'm becoming less inclined to book flights on this aircraft whenever I can avoid it. AC's 321XLRs won't arrive soon enough.