SCMP: China’s first home-grown narrowbody passenger jet has passed a battery of “deep level” safety tests as part of a step that is expected to help the C919 find overseas markets as its rival Boeing wrestles with a list of mechanical woes. 《南華早報》：中國首架國產窄體客機已通過一系列「深層」安全測試，此舉預計將幫助C919在其競爭對手波音公司苦苦應對一系列機械問題之際，找到海外市場.

China Eastern Airlines Technology, a subsidiary of the group that owns C919 operator China Eastern Airlines, concluded four days of “A-inspection” tests on Monday at a hangar in Shanghai, the Civil Aviation Administration said on Tuesday. 中國民航局週二表示，C919 營運商中國東方航空集團旗下子公司東航科技週一在上海機庫結束了為期四天的「A 檢」測試.

The aircraft is required to undergo safety checks after either every four months, 700 flight hours or 500 flight cycles – meaning the operation of an engine from take-off to landing – depending on which threshold is reached first. 飛機需要每四個月、700 個飛行小時或 500 個飛行週期（即發動機從起飛到著陸的整個運行過程）進行一次安全檢查.