Ah Checkers me old mate,
Knew I could rely on you.
Tried to find something under TSO-C 13e to which CAR103.13 refers but without luck. I will be putting together an article for our next newsletter on the matter.
The pilots / pax are perfectly correct to don an approved jacket for their weekend 10 minute flights over to Rotto but the big question of it's condition upon it's return is the issue here.
I know, having flown offshore a bit, that many of the yolk type aviation jackets have a security thread either on the velcro seam or on the activation tab. Makes you feel a hell of a lot more confident about their serviceability.