Hi abdg
The ICOM radios (A6E/A24E) shown in the French data sheet in patowalker's post are the same as those approved by the CAA for airborne use in Annex 2 aircraft in UK, so you will be OK in France using one even in the unlikely event of a ramp check. Warning, they still are rather finnicky about which headsets and wiring installation they work with; this is much better using an external antenna a metre or so away from the cockpit. Best to carry a spare battery, or a 12V battery and use the power adapter supplied if you are prone to talking a lot. The external FM filter is recommended for external antennas, not mandatory, and is to give the FM immunity that certified installations must have. Possibility of FM broadcast breakthrough if flying very close to a local music station radio antenna. The quality of the music received is not good.
The Yaesu models aren't approved anywhere for airborne use, something to do with transmit overspill into adjacent 8.33 channels.