A report by a Chris Goodfellow, a pilot, at wired.com is gaining momentum on the web. The article, “A startlingly simple theory about the missing Malaysia Airlines jet,” makes the case for a fire in the cockpit. He writes:
For me, the loss of transponders and communications makes perfect sense in a fire. And there most likely was an electrical fire. In the case of a fire, the first response is to pull the main busses and restore circuits one by one until you have isolated the bad one. If they pulled the busses, the plane would go silent. It probably was a serious event and the flight crew was occupied with controlling the plane and trying to fight the fire. Aviate, navigate, and lastly, communicate is the mantra in such situations.