Two of Boeing's new 787 Dreamliner planes flown by Japan Airlines have turned back with technical problems in the space of 24 hours.
JAL was forced to turn around its Tokyo-bound flight from Moscow on Thursday due to a problem in the jet's toilet system, a spokesman for the carrier said.
The flight, carrying 141 passengers, departed Moscow on Wednesday evening and returned after about five hours, he said. It is a 10-hour flight between the two cities.
JAL spokesman Takuya Shimoguchi said the toilet malfunction on the flight from Moscow was most likely caused by an electronic glitch and the plane was being repaired. Separately, a Dreamliner headed to Tokyo was diverted back to San Diego because of a possible problem with its deicing system.
The flight left Lindbergh Field shortly after 1.30pm local time on Wednesday but turned around and landed back in San Diego by 3.10pm, local news reports said.
Airline officials said the pilot received an error message for the deicing system and decided to go back to San Diego for repairs.
The incidents follow a spate of problems since the Dreamliner's first flight in December 2009, including overheating batteries that forced the grounding worldwide of the fleet for three months this year. Boeing redesigned the battery systems to the satisfaction of US aviation regulators.
JAL made headlines this week by signing with Boeing rival Airbus for its next generation of long-haul jets.
The Australian airline Jetstar took delivery of the country's first Dreamliner on Wednesday.
(c) 2013 Guardian Newspapers Limited.
Original headline: Two Dreamliner flights turn back
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