A number of posts suggested that all those dense jungles in SE Asia could easily hide a small smoking hole. Let me remind everyone that the romantic picture of dense jungles (with aeroplane wrecks overgrown with trees waiting for Indy) is a thing of the past. The region has one of the highest population densities of the world, and more than 90% of the original primary forest cover is gone, to be replaced by farmland, palm oil plantations, and second-growth forests after logging. Even in mountainous areas where the forest canopy appears continuous, there is a dense pattern of small farms and villages. I find it inconceivable that a T7 could have landed or crashed anywhere on any land within range (except small uninhabited islands in the Pacific and Indian Oceans, but those are not many) without being heard or seen by somebody.