The Tokyo District Court ordered two companies Thursday to pay some ¥75 million in redress to a mother whose daughter was killed when a small plane crashed into the daughter's house near Chofu Airport in July 2015.
Three people, including the 34-year-old woman, died in the accident.
The mother, 64, had demanded about ¥95 million in damages from Nippon Aerotec Co., SIP Aviation and the Tokyo Metropolitan Government.
Judge Makiko Kamoto, who presided over the trial, said the crash was partly caused by the plane being too heavy for takeoff.
Kamoto found Nippon Aerotec did not have a flight manager and failed to tell the pilot the plane was overweight. The judge also found SIP Aviation, which was led by the pilot, responsible for the crash.
The judge rejected the plaintiff's claim that the metropolitan government should also be held responsible because it has the authority to limit use of the airport.
The metropolitan government, however, did not proactively authorize the use of the airport by the aircraft, the judge said.
"I can't accept the ruling on the metropolitan government," the plaintiff said.
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