A single 787 took flight flew from Fort Worth, Texas to Everett's Paine Field Thursday morning on a so-called ferry flight so the crew could test the lithium ion battery that have become the focus of an investigation after the jets were grounded last month.
The FAA approved the special flight under certain conditions. There were no passengers and the crew had to continuosly monitor the lithium ion battery that has caused the 787 problems.
A federal probe into electrical fires led to the grounding of all 50 Boeing 787s around the world last month.
The FAA did not approve a test flight, but analysts say Thursday’s flight will give pilots a glimpse at how the battery reacts in the air.
"In reality, this flight will give Boeing at least a brief opportunity to do a few checks and balances," said CNBC analyst Phil LeBeau.