Japan's largest airline All Nippon Airways Co. (ANA) had reportedly delayed a flight from Tokyo's Haneda airport to Frankfurt for about one hour and 40 minutes on Wednesday after finding a problem in the wiring of a fire extinguisher for an engine on one of its Boeing 787 Dreamliner twin-jets.
While checking all 20 of its Boeing 787s, ANA has found similar wiring problems in two other aircrafts, the Japan Times reports.
The problems were found in the control system of the fire extinguishers near the front cargo bay, which were not related to the battery problem reported earlier that triggered the worldwide Dreamliner grounding of planes.
According to the report, if a fire would have occurred in any of the jetliner's engines, faulty extinguishers might had targeted the other engine leading to a casualty.
Meanwhile, Japan Airlines Co. had returned a Helsinki-bound Dreamliner to Narita for a check after receiving notification of a similar problem.
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