The potential issue I see with Bombardier is the reduced cash flow and a growing debt due to:
the failure of the Learjet 85, the two-years delay of the 7000/8000, the smaller amount of Global 5000/6000 orders, the rather slow sales progress of the Learjet 70/75 and overall the high cost of the CSeries program, with, to date, no new orders in 2015.
Probably nothing lethal in the short term but still worrisome.