United plans to resume 787 service in May
April 9, 2013 -- Updated 1507 GMT (2307 HKT)
A 787 Dreamliner passenger jet is tested above the Boeing factory at Paine Field in Everett, Washington state on March 20, 2011.
- United Airlines is only U.S. carrier that flies the 787; 50 in service worldwide
- The 787 was grounded in January after two battery fires in Boston and Japan
- The Federal Aviation Administration must still sign off on Boeing's battery redesign
Washington (CNN) -- United Airlines plans to resume flying the 787 Dreamliner in May, the carrier told CNN in anticipation of regulatory approval of Boeing's remedy for battery problems that forced the jetliner's worldwide grounding.
While United is the only U.S. carrier that flies the wide body, a signal from the world's biggest carrier indicates that others are also likely making plans to resume service in coming weeks.
For the first time in months, it also indicates a clear time line for Boeing to return the aggressively promoted but troubled jetliner to the skies after it was grounded by regulatory authorities globally in January.
United said it plans to start flying 787 again on May 31.
Final battery test on Dreamliner 'straightforward'
The Dreamliner can do THAT?
Boeing: Dreamliner to fly within weeks
Dreamliner, A380: Headaches?
"We are in the process of formulating our domestic flying plans and will be making additional schedule changes as we gain visibility to the time line for certification and modification work," Christen David, an airline spokeswoman said.
United said it will fly the plane on both domestic and international routes.
Boeing modified the 787's lithium-ion battery system after fires in Boston and in Japan prompted aviation authorities globally to ground it. It completed new test flights last week.
The Federal Aviation Administration (FAA) will review the test data and must sign off on the redesign.
Transportation Secretary Ray LaHood has said the Dreamliner will not be allowed back in service until Boeing proves the new design is safe.
Boeing has placed a huge bet on the lightweight, mostly carbon-composite jetliner.
Only 50 Dreamliners were flying worldwide at the time of its grounding, but the world's largest aircraft manufacturer has orders for several hundred in the pipeline.
Part of complete coverage on
September 15, 2014 -- Updated 2232 GMT (0632 HKT)
ISIS has slaughtered hundreds. Now nearly 40 nations have agreed to take the fight to the militants. But what can they do?
September 10, 2014 -- Updated 1253 GMT (2053 HKT)
ISIS has captured the minds of a new generation of global jihadists. What does it mean for al Qaeda?
September 15, 2014 -- Updated 1504 GMT (2304 HKT)
Each day, CNN brings you an image capturing a moment to remember, defining the present in our changing world.
September 12, 2014 -- Updated 0338 GMT (1138 HKT)
Treated with all due respect, volcanoes can offer some stunning vistas. Just don't fall in.
September 12, 2014 -- Updated 0522 GMT (1322 HKT)
The blogger, the hacker, the PM... and Kim Dotcom? New Zealand's election campaign erupts in scandal.
September 11, 2014 -- Updated 0236 GMT (1036 HKT)
In the aftermath of that deadly day, the enemy quickly became clear. But now a plurality of extremist threats tests global resolve.
September 10, 2014 -- Updated 1321 GMT (2121 HKT)
Soviets put stray dogs into orbit. Then, next thing you know...
September 12, 2014 -- Updated 0928 GMT (1728 HKT)
Her name is Thokozile Matilda Masipa, and she is the woman who will rule whether Oscar Pistorius is a murderer.
September 9, 2014 -- Updated 1448 GMT (2248 HKT)
As a 10-year-old, this boy first hit the headlines in 1982 when he saved his cat from a fire. This year, he was reported to be a suicide bomber.
September 10, 2014 -- Updated 1517 GMT (2317 HKT)
After months -- if not years -- of speculation, the tech giant's first foray into wearables has arrived. Here are our first impressions.
September 10, 2014 -- Updated 0805 GMT (1605 HKT)
Bali might be a popular tourist destination but there are crowd-free corners worth exploring.
September 10, 2014 -- Updated 1120 GMT (1920 HKT)
Scots are preparing to vote on the future of their country. Will they decide to leave the UK?
Browse through images from CNN teams around the world that you don't always see on news reports.
Today's five most popular stories