CNBC has learned Boeing has formally filed a request with the FAA to allow the company to resume test flights of 787 Dreamliners.
The company filed its request today.
(Read More: Boeing CEO: 'We Will Get the 787 Back in Service')
Why now? What's changed?
Through the testing of batteries and review of data, Boeing believes it now is to the point where further testing of Dreamliner batteries and components is needed while they are in flight. In other words, there are tests needed to either confirm or eliminate whether certain conditions (vibration, etc.) in flight did or did not contribute to the two Dreamliner battery fires.
There is no word on when the FAA will respond.
NOTE: This is only for Boeing 787's, not those delivered already to customers like United Airlines.
(Read More: With 787s Grounded, ANA Wants Other Boeing Planes)