Airlines began inspecting Boeing 737 engines after an explosion killed a passenger on a Southwest Airlines flight. Aleksandra Michalska informs.

PHILADELPHIA – Regulators of US airlines reported on Wednesday night that they will order inspections of engine fan blades like the one involving a fatal flaw that killed a woman in a plane that landed emergency in Philadelphia.

The Federal Aviation Administration said it will issue a directive in the next two weeks to demand inspections of certain CFM56-7B engines. The announcement came after the researchers' initial findings showed that Tuesday's emergency was caused by a fan blade that fell off, causing the debris to hit the Southwest Airlines plane and for a woman to remain partially ejected by a window. Later he died.

Tuesday's emergency was strangely similar to an engine failure on another Southwest plane in 2016. That failure led the engine manufacturer to recommend new inspections of fan blades on many Boeing 737.

Researchers say that A fan blade broke off as Southwest Flight 1380 crossed at 500 mph above Pennsylvania on Tuesday. The failure triggered a catastrophic chain of events that killed a woman and broke a series of eight consecutive years without a fatal accident involving a US plane.

"Motor failures like this should not happen," Robert Sumwalt, president of the National Council. The Transportation Safety Council said on Wednesday

Sumwalt expressed concern about such a destructive engine failure, but said he would not yet draw broad conclusions about the safety of the CFM56 engines or the entire Boeing 737 fleet, the plane most popular commercial ever built. 19659012] #FAA Declaration: Airworthiness Directive (AD) – Required inspections of certain engines CFM56-7B.

– FAA (@FAANews) April 19, 2018