Hi Neil,
3AAAD9,2375,2375,Eurocopter AS332 M1 Super Puma,France - Army
478400 decodes to LN-OAR R44 but that became LN-OAQ and 478400 is now unallocated. I don't know whether it is LN-OAQ miscoding its old hex or if it is spurious/corrupt packet.
4CA744 is not allocated.
Nothing on your others
Thanks again
Alan