Boeing Co has asked the Federal Aviation Administration (FAA) for permission to conduct test flights of its 787 Dreamliner, suggesting the company is making progress in finding a solution to the battery problems that grounded the entire 787 fleet last month.
However, The Wall Street Journal writes:
Despite talk of progress, investigators still don’t know what caused the dangerous Dreamliner mishaps.
As the probe of burning batteries aboard Boeing Co.’s jets stretches into its second month, an international team of air-accident sleuths remains stumped about the underlying cause, according to people familiar with the details. This has fueled pessimism about how quickly the planes can resume flying.
Based on Boeing’s share price, the market believes the plane will not fly.