The Anglo-French company rushed to fix the problem it said caused several of its trains to break down: powdery snow that seeped through protective filters and triggered a major engine malfunction.

这家英法合资公司一直在抓紧时间解决问题。公司说，导致几辆列车瘫痪的原因是：粉状降雪渗透到保护过滤器中，引发引擎出现了严重故障。

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The casing is designed to be strong enough to withstand such explosions, which can be caused by problems ranging from technical malfunction to birds being sucked into the engine.

BBC: Investigators seek clues to crash

Engineers would dismantle the engine involved and study similar engines to try to learn why the malfunction occurred, Enns said.

CNN: Engine malfunction caused plane debris to fall in Canada