China's flag carrier is investigating claims a flight from Hong Kong to the Chinese mainland suddenly lost air pressure and dropped 6,000 meters (19,600 feet) because the pilots were smoking in the cockpit and accidentally pushed the wrong buttons.
원문출처 : https://www.cnn.com/2018/07/12/asia/air-china-smoking-pilots-intl/index.html
원문출처 : https://www.cnn.com/2018/07/12/asia/air-china-smoking-pilots-intl/index.html