On one plane one of the two anti-ice systems, which prevent ice building-up around the engine, failed.

 

Meanwhile, an electric glitch²（小故障） rendered six toilets unusable on another flight. 

 

These are the latest technical issues to hit the Dreamliner, which saw the entire fleet being grounded earlier this year following battery problems.

 

The anti-icing system failed on a Tokyo-bound flight that took off from San Diego. 

 

A spokesperson for JAL told the BBC that a similar issue had forced a Tokyo-to-Singapore flight to be turned back in June this year. 

 

Meanwhile, an electrical system failure connected to the lavatories³（盥洗室） affected⁴ a flight from Moscow to Tokyo. 

 

The failure resulted in six of the seven toilets on the plane not being able to flush.

 

The airline said that it was looking into the problems.

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