root cause

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“It’s not the batteries” is not good news for Boeing

This is supposed to be good news for Boeing? It simply means now there are at least two unknown root causes of fires on the 787, not just one.

Image of rear half of the Ethiopian 787 that caught fire at Heathrow

Note the burned out top of the fuselage just ahead of the vertical stabilizer. Photo from the linked New York Times article, originally from Reuters TV.

Remember, they didn’t “fix” the battery problem, because to this day they still don’t know what caused that either. They only enclosed and vented it, so that when if that catches fire, flames go shooting out a new vent on the underbelly. Yes, they threw some software and physical changes at it, to see if any might help, but without any proof of what actually failed in the first place.

In other words, they just spitballed it, hoping something might stick.

Now the same for a new cause of fire? Continue reading »

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