From a Lapresse article:
Le pilote de l'avion qui s'est écrasé mardi, Pascal Gosselin, a été formé pour piloter les appareils Mitsubishi MU-2B il y a un an, mais il devait suivre sa requalification ce week-end, a indiqué vendredi matin le Bureau de la sécurité des Transports du Canada (BST)
Translation:
He was supposed to be requalified this weekend (probably April 2nd).
I don't know if it was expired at the moment of the crash but it was certainly near its end.