Its president, the Cleveland Clinic's Bruce L. Wilkoff said he has removed some leads that didn't have electrical problems.
Even in its test flights in 2010 and 2011, the jet experienced electrical problems and engine failures, CNN reports.
India's monsoon weather has revealed new plumbing and electrical problems ahead of the arrival of England's first athletes on Thursday.
German carmaker BMW is recalling about 720, 000 vehicles, mostly in North America, over potential electrical problems that may cause unexpected stalling.
Nearly one-third of those leads also had electrical problems, said Raed Abdelhadi, a Minneapolis Heart Institue doctor who presented the finding.
Qatar Airways also previously grounded one of its 787s due to electrical problems similar to that which affected the UA aircraft.
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But if any major manufacturing changes are needed to fix the electrical problems, the company could fall further behind in deliveries.
Boston's Ben Wilson led the opening six laps but retired with electrical problems while Alex Lowes also led at one point before finishing fourth.
In December, Qatar Airways grounded one of its 787 Dreamliners after several manufacturing faults caused electrical problems similar to those that affected the United plane.
Air France has said that Flight AF 447 sent an automatic signal indicating electrical problems while going through strong turbulence early in its 11-hour flight from Rio de Janeiro to Charles de Gaulle airport in Paris.
The following year, Ryan qualified fifth fastest and was next to Steve Plater on the grid, posting a lap at over 121mph, but the bike was plagued with electrical problems and two blown engines on raceday made it a miserable weekend.
Three other Dreamliners have experienced electrical problems or had their electrical systems checked for potential issues in recent weeks, while in December 2012, a Dreamliner operated by United Airlines and flying from Houston, Texas, to Newark, New Jersey, experienced mechanical issues and was diverted to New Orleans.
With problems appearing in a forward electrical compartment on Wednesday's All Nippon Airlines (ANA) 787 emergency landing, aviation historian Courtwright, author of "Sky as Frontier: Adventure, Aviation, and Empire, " worried the situation is more serious than simply problems confined to the aft electrical bay.
Boeing said the fire appeared unrelated to previous problems involving 787 electrical power systems and that it was cooperating with the safety board.
Fish underwent minor heart surgery earlier in the year, to correct problems with the electrical connections in his chest, and has been struggling to regain full fitness.
Both Mr Obama and Mr Kenny hailed airline Ryanair's announcement on Tuesday that it will buy 175 jets from Chicago-based Boeing Co, which has struggled ever since its new 787 Dreamliner was grounded by regulators in January following problems with its electrical system.
But final approval for the 787 also was contingent on Boeing, among other things, designing an automatic system able to disconnect the batteries from the plane's electrical grid in case of unexpected problems.
But drivers who responded to Consumer Reports' surveys cited "serious" problems with the vehicles' electrical systems, power equipment and accessories.
It emerged last month that Astute had encountered several problems during its sea trials, including leaks and electrical switchboards which were were found to be fitted incorrectly.
To be sure, there is no clear evidence that the problem with the electrical generator on that United flight is directly related to the problems with the ES that I learned about in 2009.
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Other aircraft, including the Airbus A380, have had problems during rollout, said University of Dayton professor Raul Ordonez, an aircraft electrical and computer engineer who spent time observing Dreamliner development at Boeing's Seattle headquarters.
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