I was interested in which 737 8 Max aircraft are still flying around the world.
I filtered for B38M, and it (3/12/19) looked as I expected, with noted flights concentrated in the US and China, and none over the countries that have grounded them.
Does grounding affect flights to and from the UK, even from areas where they are not grounded?
And, a real point of interest…
FlightRadar24 seems to only show B38M over the US, and two from Turkish Airlines.
If I look over China, FlightRadar24 shows none.
If I look at one of the flights in FlightAware, it shows an aircraft of B38M and the flight number. If I then look at that specific flight number in FlightRadar24, I get a different aircraft designation, like B78M instead of B38M, but if I filter for that, I don’t pick up the flight.