That step will be followed by a short waiting period to allow the public to submit comments. Boeing officials, however, believe the comment period on the superseding AD could be closed out within the five-day window it takes to install the battery kits,
FAA clears 787s to re-enter service within a week
Surely it is either safe or it is not safe.
The imperative is a return to commercial operation as soon as possible.
The old containment box did not contain a thermal runaway. They seem to have fixed this one quite nicely.
They have, but what caused the thermal runaway? Have they fixed that? is this mysterious, unknown issue a potential issue in itself? Whats the probability one or both batteries will fail at the same time?
How can you be 100% (1000%??) sure about the safety of an aircraft when you don't even know the cause of the not-fire?