Comment by __turbobrew__
2 days ago
I wonder if the switches are still in tact after the crash? Can they verify that the switches are mechanically sound? If so, seems highly likely it was intentional.
2 days ago
I wonder if the switches are still in tact after the crash? Can they verify that the switches are mechanically sound? If so, seems highly likely it was intentional.
There are pictures of them in the report.
I'd suspect the wiring leading from the switches to the engine controllers first, especially since it looked like both circuits cut out nearly at the same time.
This is speculation again since I don't really know, but my understanding of aviation engineering is that there would be two separate controllers for each engine connected to these two switches. At no point would they be connected to the _same_ control unit. The really short time (~1s) between the two being cutoff is the difficult thing to explain here.
Are the wires leading up to those switches on the console also kept separate, or are they just bundled together as part of the same harness (presumably before it splits to go to the engines)? I think that's also important in understanding the possible failure modes.