Avalanche rescue backpacksAvalanche rescue backpacks (one per passenger) are accepted as checked baggage onlyon the condition that they are equipped with:
a pyrotechnic trigger mechanism containing not more than 200 mg of explosive substance (Division 1.4s);
the explosive must be packaged or designed in a way that presents no significant hazard;
a cylinder of non-flammable, non-toxic compressed gas (Division 2.2) of not more than 250mL.
The cylinder must remain installed in the backpack at all times.The accepted backpack must be packed in such a manner that it cannot be accidentally activated. The airbag within the backpack must be fitted with pressure relief valves.Replacement/spare cylinders for rescue backpacksReplacement/spare cylinders are not accepted in either checked or carry-on baggage.Avalanche transceiversAvalanche transceivers are accepted in both carry-on and checked baggage provided the batteries are removed from the unit and stored separately. See "Batteries" in the "Common items" section above.