In accordance with international regulation relating to passenger air transport, items posing a safety/security risk are not permitted to be carried on an airplane or helicopter, whether this baggage is placed in the hold (checked baggage) or placed in the cabin (carry-on baggage or even on the passengers themselves).
Items that are permitted by the regulation are allowed on-board under specific conditions (nature of the items, location, quantity, packaging, prior information to the airline, etc.) which guarantee the safety and the security of the flight. For example, some items permitted in the cabin are not allowed in the hold (including lithium batteries on their own i.e. batteries not contained in equipment, or spare batteries and e-cigarettes).
You can find “The Airbag” app on the website of the French Civil Aviation Authority (DGAC).