It is the first fatal crash of a commercial airliner in the us since 27 August 2006, when 49 people were killed when a Comair jetliner crashed after take-off in Lexington, Kentucky.

这是自2006年8月27日以来，第一次致命的商业飞机坠毁事件记录。上次空难中，一架Comair喷气客机从肯塔基的Lexington起飞以后坠毁，49人遇难。

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"We continue to fight a losing battle against weather and congestion in that part of the country, " says Comair spokeswoman Kate Marx.

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Five other airlines -- Atlantic Southeast, Comair, ExpressJet, Mesa and Pinnacle -- didn't get an overall grade because some categories couldn't be completed.

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Total air-related deaths (beyond pilots and engineers) shot up to 215 from 149 in 2005, mainly due to last summer's ComAir crash in Lexington, Ky.

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