After weeks of search not a single item belonging to MH370 has been found.
It has vanished.
My personal view as B777 Captain:
no structural damage, smoke/fire condition or other non normal event could have prevented the pilot to transmit a distress signal.
If for any reason any of the above situation could have developped into a rapid loss consciousness and control by the pilots the aircraft would then have crashed somewhere in the proximate area of the event.
Initiation of an unlawfull interference would have given the pilots time to either set ATC code of transmit on VHF (even blind) and trace of it would then exist.
Without the intent to bring blame to anyone without having proof of it I can see the following scenario:
- A pilot wants to disappear without leaving trace and by doing so creating a situation putting a governemt in the international spotlight and only by leaving no trace, whatever the cost, will the action be successful.
- Once set on the task the pilot would, at an appropriate time, take control of the flightdeck.
- At a FIR ATC change over, disable Transponder (switch) and ACARS (cb's) and turn to the new course
- Cabin crew and eventually passengers could become a 'threat' .
Manual depressurization of the aircraft and a climb will within 22 minutes exaust the passenger oxygen whilst the freezing temperature takes care of any cabin crew member eventualy gone on portable oxygen.
- From then on the flight continues on a pre-planned course and level to avoid VHF and direct radar coverage.
- Once reached the area with a deep ocean bottom and before running out of fuel the pilot, as smoothly as possible (FCTM 8.5), ditches the aircraft
- No doors are opened and the aircraft sinks in one single unit without leaving debries.
The aircraft has vanished.