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And right to our top story tonight investigators still trying to determine what led to the fiery crash of the Boeing 77.
Seven AG on a flight in San Francisco the pilot was still training to fly that plane an airliner was flying well below target speed before the crash.
The crash course killed two people and sent more than a 180 passengers to the hospital.
But what prevented this tragedy from being even more tragic with more on this Bob Francis former vice chairman of the National Transportation Safety Board.
And Flight Safety Foundation board member Bob welcome back to the show.
Great to have you here you know I -- this video.
And smoke and then I learned that 307 passengers.
Managed to survive this crash.
Why is it that how is it that people can survive this kind of crash and what kind of crash is survivable.
Well I think -- the main answer is that.
Over the past twenty to 25 years.
A lot of very Smart dedicated people.
All over the world.
Have been trying to figure out what you have to do.
To make crashes survival.
And this is everything from construction of the aircraft.
To how the seats third.
Tied down in the airplane to -- what kinds of fabrics.
Non flammable fabrics.
All of where that where the exit door should be.
So a lot of lot of small change.
Source that really add up to a lot I've read about better safety -- better seat technology.
Exit shoots fire proofing extreme fire proofing that all help and of course we read about the heroes.
Who actually carried people -- this plane.
When it comes to this kind of event though.
These massive Jumbo airliners really survived better than smaller.
Planes we saw the Alaska flight crash that killed ten people tragically this weekend.
What's the difference.
Well to do a lot of the differences the strength of the structure.
You know obviously -- triple seven as a lot stronger than enough pipe Burris.
Small aircraft so.
No it isn't always the case sometimes the small aircraft can find a place to land where the big when Clinton but.
As a general rule that the resistance to to damage of -- big airplane is going to be better.
-- being questioned presumably with a relative -- the relative newbie to flying.
A Boeing 777.
And his first landing -- -- FSF though this was the result of that.
If this pilot error is.
If that's not enough training of pilots what is the problem here.
Well I think there is clearly.
A training issue here.
He was he was being supervised desire understand it by the other pilot in the right -- And if that's the case that pilot should have been right on top of what was going on and giving direction to the two of those less experienced pilot.
-- some people -- said.
That it could have been a cultural issue.
That in a Korean culture that perhaps some people did not want to question the pilot who is guiding the plane at that time do you buy that.
Well it looks to me like it's reversed.
The senior pilots and the more experienced pilot as I understand it was in the right city.
And he was tutoring training.
The pilot in the left seat along so you have that you had a pilot with thousands of hours of this aircraft and the right see.
As the supervisors.
And a pilot was.
Forty or fifty hours on the left hand -- so I don't think that's an issue.
This case will -- come down the pilot error though that the headline on the Wall Street Journal story on this today.
Pilot error in question do you believe that's the issue here.
I would say that based what we know at this point.
That certainly going to be.
On the top of the list of things that that safety board is going to be looking into very closely.
What any other questions that came up which I thought was interesting the glide slope system this is a ground based aid that helps pilots stay on course.
My understanding was it was shut down I'm not sure why at San Francisco airport.
What role did that play -- thank.
I don't think that played any role at all.
That though the glide slope is very important when your visibility is bad.
But they had they had.
They had indicators of whether you were up were below the glide slope.
On the field it's.
So they had that and they had.
Their eyes on on day one visibility was no problems and what will be key facts -- investigators will be searching for as this investigation gets under way.
Well I mean I think they're gonna obviously human performance this going to be high on the list and they'll be they'll be going through all the other things.
The of the aircraft and and performance of the aircraft and obviously the the -- the field and that navigation -- they'll be checking.
The -- that were there to make sure they were on the glide slope to make sure those were accurate.
Air traffic control is probably not going to be a big issue.
Looks like human performance it's going to be the thing that.
-- they're going to be spending a lot of time -- Well Bob thanks for coming on tonight interesting interview and of course will be watching this I don't know how long it will take us to get answers -- thank you for helping us tonight.
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