In the category 'return to sender', there's a recall on backpacks with the Jetforce technology. This relatively new airbag does not work with cylinders which are under high pressure (like ABS and Mammut), but with a battery which drives a fan. Read more about the Jetforce airbag here. Anyway, if you have one in yourself now it's time to send it back.
Black Diamond, POC en Pieps
In a limited number of cases, system malfunctions have resulted in involuntary shutdown and/or failure to deploy. These malfunctions can be resolved by a firmware update at one of their global service centers at no costs. All JetForce Avalanche Airbag Packs sold between November 15, 2014 and July 7, 2015 should be returned.
You can read everything about the return of your airbag here. Fortunately, no accidents happened due to these malfunctions. Anyway, it's summer, so return your airbag now!