The content originally appeared on: CNN The decision to ground the Boeing model 737-800 was made by China Eastern Airlines, which operated the jet that crashed March 21, killing all 132 on board. The cause of the crash has yet to be determined, and the grounding could be lifted soon if it turns out the cause was not mechanical. But Boeing has plenty of other troubles in China, the world's largest aviation market. It is on the verge of being […]