22 April, 2018
That order will affect about 680 engines globally, including about 350 in the United States, the FAA said.
A spokesman for CFM told Gizmodo that the engine involved in Tuesday's incident was not subject to the Service Bulletins issued following the 2016 incident, and that Southwest had implemented the recommended inspections.
Investigators are continuing to work on the Southwest 737 that had an engine blow out in flight on Tuesday, killing 43-year-old Jennifer Riordan. The engine is built by CFM International, a partnership between General Electric and Safran Aircraft Engines, a French company.
But what happens on the silver screen made it into real life after an engine of a Southwest Airlines plane in Philadelphia broke up in flight over 32,000 feet in the air.
Sumwalt said the fan blade, after suffering metal fatigue where it attached to the engine hub, has a second fracture about halfway along its length. "Also, it recommends inspections by the end of August for fan blades with 20,000 cycles, and inspections to all other fan blades when they reach 20,000 cycles".
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The CFM56-7B is one of the most common engines in the sky being fitted to Boeings Next Generation 737's (-600/-700/-800 &-900) and they have an extremely good safety record and events involving cracked blades are extremely rare.
In March, an Arik flight from Lagos to Accra, Ghana, made an emergency landing after the pilot detected a smoke in the cabin. But now that inspection process has been dramatically accelerated, with the engine manufacturer also saying that more jet aircraft may have to be added to the inspection list. Inspections take between two and four hours per engine, according to the FAA and manufacturer.
In its letter, Southwest Airlines pointed to the ongoing National Transport Safety Board investigation into the incident but said its priority was assisting the traumatized survivors.
He was one of the passengers who said they received the letter.
In a February 26 email to Southwest Airlines Chief Operating Officer Mike van de Ven obtained by the Chicago Business Journal, Aircraft Mechanics Fraternal Association director Bret Oestreich warned: "The truth is that there exists a concern regarding the degradation of safety within Southwest's maintenance program as determined by the Federal Aviation Administration". But the fact that this was the only passenger to have ever died on Southwest flights since the pioneering low-priced carrier was founded in 1967 and when the airline carries over 120 million passengers a year, shows that what occurred is the rare exception.