Will a pending CCF challenge prevent my arrest at a French airport?

No. A pending CCF application does not automatically suspend the Red Notice or prevent arrest. French border police will still act on the notice in their databases. However, if you have filed a CCF challenge, this documentation can support an urgent bail application before the French investigating judge (juge d’instruction) and demonstrate good faith. To obtain actual protection against arrest, you would need either a successful CCF deletion or a French court order specifically prohibiting provisional detention pending the CCF outcome.