While it was a 737, i do not know if it was a ‘max’.
But, either way, a 737 in flames is not the failure mode of the MCAS system in the news.
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It was not the "max".
All 737 Max’s are grounded.
I read a report that it was a Boeing 737-8. The generation before the MAX. Not effected by the MCAS fiasco.
Besides, falling from the sky on fire was not the MCAS crash profile.
Not a Max. Iranians are not giving up the “Black Box”, which indicates to me that they probably shot it down (probably from their anti-aircraft missile systems).