This is one of the great misunderstandings of federally regulated pensions. When they say they have five years to pay back the deficit, everybody leaps to the conclusion that, five years after that deficit, the pension is fully funded. That's not what happens. They have five years to pay off that particular deficit.
In the federal program, if there's a deficit next year, they take what's owed from the first year and add it to the second year and get five more years. With the third year and the fourth year.... There's a great incentive. I have actually called the CRA and they won't let me do that with my taxes.