Flight attendants on many airlines have also added a warning about the Samsung devices during pre-flight safety demonstrations.

许多航空公司的空姐在飞行前安全示范期间，还增加了一条对三星手机的警告。

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And the NTSB is recommending the FAA prohibit the non-flight-related use of portable electronic devices while in flight and during safety-critical planning operations on the ground.

CNN: Pilot texting a factor in deadly copter crash