Analysis of information sources in references of the Wikipedia article "저먼윙스 9525편 추락 사고" in Korean language version.
Contrary to previous reports, the crew did not send a distress signal, according to AFP. Civil aviation authorities told the agency: 'The crew did not send a Mayday. It was air traffic control that decided to declare the plane was in distress because there was no contact with the crew of the plane.'
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에 라인 피드 문자가 있음(위치 89) (도움말)'The aircraft did not itself make a distress call but it was the combination of the loss of radio contact and the aircraft’s descent which led the controller to implement the distress phase,' a spokesman for the DGAC authority said.