Sun went down there about an hour ago. Don’t even know if the search area has any type of fishing grounds or minor shipping routes.
From what I can gather, most fishing and sea lanes in that area are coastal.
In that sea, it is difficult to find an area with nobody around. That is why I am surprised that nobody saw anything coming down. It is not right on the S’pore-Laem Chabang lane, but rather near it, and there is some traffic between Songkhla and Vung Tau.
There are thousands of fishing boats out there. I worked there a lot clearing out fish traps (boo-boos) in preparartion for seismic shoots. The Thai and Viet fishermen hate each other passionately, and both push the line, as they are not sure exactly where the sea border is. There might not be a lot of activity now, in early March, as the NE monsoon still makes the weather a bit snotty.
I am thinking that the aircraft went down in small pieces, establishing a huge debris field.