马航失联飞机可能飞行五个小时_BEC初级作文

马航失联飞机可能飞行五个小时

But the huge uncertainty about where the plane was headed, and why it apparently continued flying so long without working transponders, has raised theories among investigators that the aircraft may have been commandeered for a reason that appears unclear to U.S. authorities. Some of those theories have been laid out to national security officials and senior personnel from various U.S. agencies, according to one person familiar with the matter.

At one briefing, according to this person, officials were told investigators are actively pursuing the notion that the plane was diverted "with the intention of using it later for another purpose."

As of Wednesday it remained unclear whether the plane reached an alternate destination or if it ultimately crashed, potentially hundreds of miles from where an international search effort has been focused.

In those scenarios, neither mechanical problems, pilot mistakes nor some other type of catastrophic incident caused the 250-ton plane to mysteriously vanish from radar.

The latest revelations come as local media reported that Malaysian police visited the home of at least one of the two pilots.

Boeing officials and a Malaysia Airlines official declined to comment.

The engines' onboard monitoring system is provided by their manufacturer, Rolls-Royce RR.LN -1.71% PLC, and it periodically sends bursts of data about engine health, operations and aircraft movements to facilities on the ground.