A preliminary examination of the blown jet engine of the Southwest Airlines plane that set off a terrifying chain of events in the US and left a woman hanging half outside a shattered window showed evidence of "metal fatigue", according to the National Transportation Safety Board. That incident prompted the FAA to propose past year that similar fan blades undergo ultrasonic inspections and be replaced if they failed.
National Transporation Safety Board Chairman Robert Sumwalt said, "We are very concerned about this particular event".
Although the FAA said the directive would apply to about 220 engines, airlines said that because fan blades may have been repaired and relocated, it would affect a far greater number.
Sumwalt also said a casing on the engine is meant to contain any parts that come loose but, due to the speed, the metal was able to penetrate the shell.
The engine was on a Boeing 737 - the most popular airliner ever built. On Tuesday, the Dallas-bound Southwest flight 1380 was 32,500 feet over Pennsylvania when the plane's engine fan blade broke off, causing debris to fly off.
The NTSB said on Twitter that it would send a team to investigate Tuesday's crash.
It is the stuff of movies, but on Tuesday, it became all too real for passengers on Southwest Airlines flight 1380, who said a woman was partially sucked out of the plane's window after it was blown out when one of the aircraft's engine exploded.
"I'm trained for emergency situations and that's just exactly what it was, and I felt moved to act as well as other people on that plane", Needum said at a news conference Thursday.
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Crews were investigating the blackout and it could take 24 to 36 hours to fully restore power, he added . An MLB spokesman, meanwhile, told the Pioneer Press that the stadium has a backup power source.
Captain Tammie Jo Shults and First Officer Darren Ellisor were interviewed by investigators on Wednesday, but their actions during the flight will still be under review.
Prior to Tuesday, the most recent fatal accident on a United States passenger airline came in February 2009 near Buffalo, New York. 7 other passengers sustained minor injuries.
"Nobody got injured, but it was hauntingly parallel to what happened yesterday", CNN aviation analyst Miles O'Brien said.
Passengers described scenes of panic as a piece of shrapnel from the engine shattered a window on the aircraft, nearly sucking a female passenger out. The anonymous passenger continued, "They were fighting to get her back in. We can see paint transfer", Sumwalt said.
"Had a window go out and a lady go out the window, and we couldn't pull in", said passenger Tim McGinty.
"I've always said, you give me a good person, I can make a good firefighter out of him". "We're stunned. My heart breaks for Michael", Marianne Riordan said. Bobby Laurie, a former flight attendant turned TV show host, shared the photo with a reminder of how oxygen masks should be properly worn.
A second bang followed, said Marty Martinez, a 29-year-old digital marketing specialist heading home to Dallas.
Just look at the left engine of Southwest Flight 1380, and it's obvious that something awful befell that machine.
"No, it's not on fire, but part of it's missing", Capt Shults replies.