Do you think Boeing's solution to the battery problem is good enough? They claimed the revised set-up is 110% now. Of course they were also fully confident in the original 787 battery and we know that didn't turn out well...
It appears they've decided to mitigate any potential fire hazard (by placing the battery in a steel case) as opposed to eradicating the problem altogether.
Boeing admits that it never found the root cause...if it never found the root cause that of course means that they'd struggle to eradicate the problem.
But do you not think they should have scrapped the new batteries completely and resorted to the old reliable?
As I am not the expert, I think Boeing has done its best or else the US FAA would not have approved the B787’s return of service. In fact, Boeing spent more than 100,000 hours working on the battery problem before they got the approval to resume service on April 19, 2013. The modification of the battery pack, which according to them, was a “comprehensive and permanent solution with multiple layers of protection”
According to the Boeing Commercial Airplanes President and CEO Ray Conner, “The ultimate layer of protection is the new enclosure, which will ensure that even if a battery fails, there is no impact to the airplane and no possibility of fire. We have the right solution in hand, and we are ready to go.”
Meanwhile, Ethopian Airlines resumed the B787 operations on April 27 and Qatar Airways soon after that. United Airlines’ Dreamliners which were grounded since January commenced operations on 20 May when one of them took off from Houston for Chicago.
Your suggestions of using the old and reliable batteries sound reasonable but I believe Boeing must have some other reasons (more power, lighter, etc) for using the lithium-ion ones. As I have previously said, all new planes, including the Airbus 380, suffer from glitches during the early years of operations.
Fortunately their operations are monitored very closely by FAA and other authorities to ensure their continued safety in the air.
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Boeing 787 Aerobatic Display at Farnborough Air Show
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