Until fairly recently, the default assumption about MH370 is that, based on the interpretation of satcom signals recorded by Inmarsat, the plane made a final turn to the left sometime after 18:25 UTC and flew south on autopilot before running out of fuel. This default scenario, sometimes referred to as the “ghost ship” scenario, was endorsed by both the ATSB and the Independent Group.
However, if the plane flew south in this manner and ran out of fuel, it would have been found by now, as Brock McEwen explained here recently. It was not found. Therefore the default scenario is incorrect: the plane did not make a final turn and fly straight to the south without human intervention.
At this point, only three possible scenarios still make sense for MH370:
- As was first mooted in the June ATSB report, the plane lingered near Sumatra before flying straight or took a curving path to the south. In either case, the plane wound up intersecting the 7th arc somewhere north of Broken Ridge, beyond the current search area.
- The plane flew straight south after a final major turn, then was hand-flown by a conscious pilot on a long glide that took it far from the 7th arc, beyond the current search area.
- The plane did not go south at all. If this is the case, then the satellite communications system must have been compromised by hijackers who either flew the plane north to Kazakhstan or China (if only the BFO values were spoofed) or somewhere else within a huge circle encompassed by the 7th ping ring (if both BTO and BFO values were spoofed).
Each of these options has unpalatable aspects, but they’re all we’ve got.
I would argue that these unpleasant choices can be further subdivided into two categories: inside the cockpit, or outside the cockpit. By “inside the cockpit,” I mean that the airplane was controlled from the flight deck, presumably by either the captain or the first officer; by “outside the cockpit,” I mean that hijackers managed to seize control of the plane either by accessing the E/E bay or hacking in through the inflight entertainment system. The reason I feel we can make this assertion is that only one minute elapsed between the captain calmly saying “Good night Malaysia 370” and the diversion at IGARI. It’s scarcely imaginable that hijackers would have time to breach the fortified cockpit door, overcome the flight crew, and reprogram the flight management system in such a short time. So whoever took the plane had to be either on one side of the door or the other.
The first two of our three options would fall under the category of “inside the cockpit.” They present a number of difficulties: Continue reading Only Three Options Remain for MH370’s Fate