With that bastion of credibility the Indonesian NTSC at the helm (authors of the esteemed Silk Air 'report') I await with baited breath the conclusions.
As Jet Jokey stated quite
- Bad weather (thunderstorm, windshear/microburst).
- Mechanical problems (always a possibility).
- Mediocre flying skills with lack of experience.
- Fitness of the crew (hours on duty).
- And finally, bad airmanship (poor decision making and/or bad judgement).
I know what three I'd bet on.