A brand-new plane, three months out of the factory, crashes. The flight before the people complained that it didn't keep a constant altitude and was like riding a roller coaster. I know there are many aviation enthusiasts and pilots on here. What do you think the culprit is?
Lion Air crash: Indonesia to inspect Boeing 737-Max 8 planes
http://www.bbc.co.uk/news/world-asia-46035609
Sounds like perhaps the pitot tubes were covered, I know there was one crash attributed to groundcrew putting tape on the pitot tubes to perform maintenance and forgetting to untape them.