The Federal Aviation Administration announced in the next two weeks it will require airlines to inspect the blades of CFM 56 engines for metal fatigue.
This follows the incident aboard a Southwest 737-700 on Tuesday, where a blade broke aboard the left engines, resulting in the death of a passenger and major damage to the airplane.
CFM, the engine manufacturer, had already called for an airworthiness directive ordering the inspections following the investigation into an eerily similar incident in August of 2016. That incident also was aboard a Southwest 737 and involved the left engine and destruction of the front of the engine nacelle.
No injuries resulted from the 2016 incident.
