Who regulates charter air lines? I haven't seen anything about the ownership or country of registration of this plane.
I found out something interesting.
The plane was 'regularly serviced' in Norway.The Mullah Krekar was just arrested there.
From BBC article Egyptian airliner crashes in sea: (last paragraph)
"The Flash Airlines aircraft was only 10 years old, was regularly serviced in Norway, and captained by a pilot with more than 5,000 hours of flying experience."