The US Federal Aviation Administration forbids non-flight-related talk in the cockpit below 3000m.

失事飞机当时正在3000米以下飞行，按照美国联邦航空署的规定，飞行员此时不能谈与飞行无关的内容。

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The US Federal Aviation Administration said it could not find anything out of the ordinary after reviewing radar data.

美国联邦航空局声称他们核对了（该地区的）雷达扫描报告，并没有发现有什么异常之处。

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On Thursday, the US Federal Aviation Administration issued a formal "air worthiness" directive allowing revamped 787s to fly.

BBC: Dreamliner: Japan lifts Boeing 787 ban

Later on Wednesday, the US Federal Aviation Administration (FAA) said that airlines must demonstrate battery safety before flights can resume.

BBC: Dreamliner: Boeing 787 planes grounded on safety fears

Boeing is expected to offer ways to fix the 787's battery problems at a meeting with the US Federal Aviation Administration on Friday.

BBC: Boeing 'set to offer plan to fix Dreamliner battery'