TBD on the cause, but loss of engines for some reason seems to be the case.
I do agree that a lot of info comes out first week that isn't all right. I'm just reciting what's been shown in videos.
Of unknown provenance, with unknown visual artefacts, et cetera. Even if completely legit, with context and thus chain of causation obscured to the point that discerning ultimate and proximate causes is impossible.
The city the incident took place in has a subreddit. Feel free to go take a look and judge for yourself. It's a bit NSFW at the moment.
It’s not. It’s one video of unknown quality and relevance, picked somewhat randomly out of all the other available videos and data, the most relevant of which aren’t publicly available.
> Feel free to go take a look and judge for yourself
It’s the usual emotional coping through baseless speculation. There are healthier ways to deal with uncertainty amidst tragedy.
We know it called mayday and then lost communication. It also stopped transmitting GPS data.
Looking at this it likely lost all electric power. The electric power comes from generators driven by the turbines.
If you lose both turbines you lose electricity. You also lose the hydraulic system so you can not get in the gear or change flaps.
Occam's razor checks out.
By the way, the age old rule is "Aviate, Navigate, Communicate" in that order of priority. So it could be they just had their hands full with the Aviate part.
I guess they're just for the time until the RAT kicks in. Or to augment it.
Ps there's also the APU, a small turbine in the tail for generating electricity.
On the professional pilot forums the consensus guess is inadvertent flap retraction, instead of gear retraction, leading to inability to climb.
Not at takeoff weight with the gear down, this sentence is incorrect.
There is a dump fuel button if you're not in the middle of a populated city and you're far enough in the sky you've got a few minutes.
most planes can't dump fuel anymore. if it's a serious enough emergency you land overweight. If it's not then you fly long enough to burn it off and land below max landing weight.
When fuel is dumped, it's at high altitude where it just evaporates.
Short haul jets can't do it, but their max takeoff weight is around their max landing weight, so it's fine. For long haul, it's not the same.
This is true but irrelevant to this crash. Most commercial jets are smaller (A320, 737 etc) and can't dump fuel.
Long-haul jets like the 787 do have the capability.
https://www.boeing.com/content/dam/boeing/boeingdotcom/comme...
It's primarily needed for weight management in planes that can take off heavier than they can safely land. I.e. if the plane had enough control to abort the flight and return to the airport, then it might have been appropriate.