Originally Posted by captnjack
They are required here but just need to be in "good condition". I have been inspected a couple times and they never look at the arming kit portion.
Jack; I believe (not sure) that the bobbin in the immersion activated LJ's have to be replaced every 3 years. Not sure if that's a manufacturer requirement or a CG thing, though (my impression was it was CG, but they've never looked at the inflators when I've been boarded, either, so I'm not positive.)
I've never heard of the actual mechanism expiring, only the bobbin (but I also don't have the fancy pressure activated triggers.)