Flying from Yellowknife Airport to Resolute Bay.

It's an extremely remote part of northern Canada, with a tiny population only about 200 people.

We chartered the flight to bring in food on groceries for the hotel operations.

We fly our stuff in and outside, same as you go to a corner store and buy what you need and bring in when you need it.

Among the 11 passengers on board this small craft his two grand daughters, sisters, six year old Cheyenne Echo look and seven year old Gabriel Pelkey.

They're returning from a summer visit with their dad.

Their mom is at the airport waiting for them to land.

They come in whenever we have planes coming in, or they want to come up and visit so 34 times a year.

Oh, they love flying.

Cheyenne was a go getter and not afraid of anything should climb great heights, fall and get back up on Dhe Gabriel.

The older one was more quiet and studious.

They got along very, very well.

Also on board his geology student Nicol Williamson was on her way to start a new job in Resolute Bay.

In the cockpit is Captain Blair Rather fit?

He's been with first air for more than 15 years.

A veteran with almost 13,000 hours of flight time.

Yeah.

On his right is his copilot, First Officer David Hare, who was already clocked up almost 5000 hours of flight time today.

Visibility is very poor.

It isn't safe to land by sight.

So they engage autopilot to guide them in instrument landing system, or I.

L s uses ground based radio beacons to guide the plane to the runway.

Both the captain and his copilot have no reason to worry.

They have used the I'll s landing system many times in the past.

Gear down, You're down.

It was the first officer who began to recognize by looking at all the other data through the instruments that something was wrong.

No rough, right?

A little all right.

Copilot's head is concerned, but Captain Blair Rutherford is unfazed.

Therefore, deflection It's captured 10 3 is the localizer.

He still believed the aircraft waas in autopilot and that the autopilot was performing the way it was supposed to and was going to get him to the right place.

But the GPS reading warns there off course it's not captured.

GPS is off the right way.

Done something wrong.

Hair fears the autopilot hasn't locked onto the eyeless standard procedure would be okay.

Get the airplane up above the ground and figure out where why things were wrong.

We'll continue the approach.

Captain Releford puts his faith in the auto pilot and initiates the landing procedure, ignoring further warnings from his copilot.

We have full deflection on GPS.

We should go left.

No, aren't too far to the right.

Has objections continue to fall on deaf ears.

Just put your head down and continue to do something like that.

Odds are you're gonna end up with a catastrophic ending.

Just that was a short line With the craft sinking lower hair gets increasingly anxious.

I don't like this sink rate alarm adds two hemispheres.

The autopilot is taking them dangerously close to train when you get a sink rate alarm.

It says that the airplane is descending at a rate faster than the system believes is safe.

Second warning toe aboard landing minimums.

Alarm means you don't see the runway.

You must immediately initiate a go round around.

Captain doesn't relent until it's too late.

Go.

The aircraft had landed on top of the hill and spread over about 1/4 mile of debris.

Just two of the adults narrowly survived.

A middle aged man, Robin Wylie, on the young student Nicol Williamson.

Out of the rubble child emerges seven year old Gabriel Pelkey.

She has only minor injuries.

Well, she was laying there, not crying or anything.

Share a gash about three inches on the forehead.

Otherwise, she was good, Dr Hugo.

But her sister is not so lucky.

Shy on echo, Look has perished.

Terrible reality dawns on Gabriel.

The first thing she said was, it's gonna be tough Being an only child, she realized she had lost a sister.

It was bad.

It has deep lasting effects.

You know, there's not a day goes by without us talking or thinking off her.

The small community of Resolute Bay is left in shock.

How could such a horrific tragedy has happened?

Pilots learned to trust technology.

Could autopilot really have let them down?