[ad_1]
"That's a lot of blades that are cracking," the NTSB's chief aviation safety investigator John DeLisi said. "Is this a surprise … to see blades being pulled out of service long before the expected fatigue life?"
The hearing came as investigators continue to zero-in on the blowing of blowing and breaking down the surrounding engine cowling on Boeing 737 during Southwest Flight 1380 from New York to Dallas on April 17.
The debris created by the engine failure then flew into the fuselage, Jennifer Riordan, who suffered from severe injuries when she was partially sucked out of the plane. It was the first fatality on U.S. commercial aircraft since 2009.
Interviews with the flight crew released Wednesday, April 14, 2009 at 1:40 pm The Riordan back into the aircraft and perform CPR.
One flight attendant described a "loud and windy" cabin that was filled with smoke and pieces of debris as she grabbed passengers hands and told them "they were going to make it," according to an interview summary released by the NTSB.
The plane made an emergency landing in Philadelphia, with eight other passengers reporting minor injuries.
The hearing is one step in the investigative process, which is still in progress, and is in fact a part of the design, certification and operating history of the engine fan blades. The NTSB has also released its final report on the 2016 Southwest engine failure.
The blade that broke out during Southwest Flight 1380 is believed to be as far back as 2012, according to Habedank, but the crack, measuring an estimated one-sixteenth of an inch, was too small to be detected. time.
Since the April 17, 2018 accident, which ended with an emergency landing in Philadelphia.
A representative for CFM said Southwest's fleet could be explained in the Southwest's fleet – the all-Boeing operator has about 10 percent of the 15,000 CFM56-7B engines in service – and the fact that Southwest took over many of the deliveries of the engine, which entered service in the 1990s.
Investigators peppered representatives from plane-manufacturer Boeing and engine-maker CFM with questions about the engines that were designed and certified more than 20 years ago. The Federal Aviation Administration and Southwest were also represented at the hearing.
[ad_2]
Source link
