Boeing is supposedly ready to ask FAA permission to test fly the planes. Test what? The proposed solutions are 1. encasing the battery 2. sensors to detect smoke and 3. venting. They admit they have not found the cause yet. So when they get the plane in the air - are they going to deliberately start a fire? To see if the mitigation safety features work? And if so, how will they spin that in any positive way? Assuming the safety features work will they then come out with a press release that says, "We test flew the plane. We started a fire in the battery. The sensors picked up there was a fire, the fire was better contained within the newly encased battery compartment, and the smoke was vented properly - So Welcome Aboard!!!!"
THe proposal includes changes to the battery to prevent thermal runaway. That is the main part of the fix.
Then the improvement in monitoring condition of the battery cells to catch any problem before it occurs, Then the enclosure change if a real problem surfaces and the battery overheats. It is a bit of overkill but planning for the worst case scenario will get FAA approval faster..
That is very interesting. I have not read one thing about the change to the battery itself to prevent thermal runaway. In fact I have no idea what that means. Themal runaway......Do you have a link? TIA