Boeing has put its embattled 787 battery changes through a final flight test and hopes regulators will sign off on the alterations to allow the planes back in the air, CBS News reports.
The Dreamliner has been grounded since mid-January because of the batteries that became overheated.
The changes to the battery include more insulation and a box designed to vent hot gases out of the plane in the case of a meltdown.
The test was conducted in Everett, Wash., on Friday, and officials are expected to submit the data soon. The Federal Aviation Administration has not set a date for its decision on the fixes.
The National Transportation Safety Board, which investigates aviation incidents but doesn’t have enforcement power, plans a two-day hearing on the 787 incidents beginning April 23.
Evandale-based GE Aviation, which builds the engines for Boeing’s 787 Dreamliner, has benefitted from the contract despite problems with the batteries that it did not produce.