美国全国运输安全委员会 (National Transportation Safety Board, 简称NTSB)已确认，他们已找到 庞巴迪 (Bombardier) CRJ700客机的两个黑匣子，目前正在对每个黑匣子进行评估。

WASHINGTON, June 25 (Xinhua) -- The U.S. National Transportation Safety Board (NTSB) said Tuesday multiple systemic failures led to a mid-air door panel blowout of a Boeing jet last year, faulting ...