All language subtitles for Malaysia.Airlines.370.plane.wreck.draining.the.ocean.2019.1080p

It's the greatest aviation mystery
of all time*

RADIO CHATTER

How can a Boeing ****
with 2** people on board*

simply vanish without a trace?

The answer lies somewhere at the
bottom of the I ndian Ocean*

I magine if we could empty the
oceans*

letting the water drain away*

to reveal the secrets of the sea
floor*

Now we can

Using the latest underwater scanning
technology

piercing the deep oceans and turning
accurate data into D images

This time

with unique access to the official
investigation

key mysteries of Malaysia Airlines
0

What lessons lie amid the wrecks of
previous air disasters?

Can Cold War technology extract
vital clues from the deep ocean?

And if the plane is found

what secrets could lie hidden in the
tangled wreckage?

March 8th 201

Malaysia Airlines Flight 0 departs
uala Lumpur

on a six- hour to Beijing

As the Boeing enters Vietnamese
airspace

it suddenly drops off air traffic
control radar

A modern commercial airliner

carrying 2 people has just
vanished

There's no Mayday call

and no wreckage at the point of last
radar contact

Aviation authorities struggle to
understand

We beleve famly members should
prepare themselves for the worst.

Families left behind demand answers

The Malaysian government launches an
investigation

It will be the largest and most
expensive in aviation history

With multiple dead ends

false leads

a deluge of speculation

but only a handful of real clues

One of the first comes from the
Malaysia military

Powerful defence radar has detected
the plane

turning back across Malaysia

heading north-west up the Straight
of Malacca

then disappearing out of range here
just north of Sumatra

It's a shocking discovery

After it disappeared from civilian
radar

it didn't crash

it continued flying

I ntally when the aeroplane made a
turn

wthout talkng to ar traffc
control

n my mnd all bets were off.

It could be a terrorst event
t could be a delberate act

by a crewmember t could be a mass
falure n the electrcal system.

The next clue comes from space

Although lost to radar

MH0 continued to exchange what are
called heartbeat signals

with an I nmarsat satellite above the
I ndian Ocean

The heartbeats come once an hour

Frequency changes in the signals

help experts calculate its direction
of travel

and reveal something extraordinary

After its initial track to the
north-west

MH0 turned south and flew for six
more hours

From the travel time of each signal,

investigators also calculate the
plane's distance from the satellite

These lines are called arcs

Using the fuel load and cruising
speed

they can recreate a range of
possible flight paths

as the plane crosses each arc

The final, or seventh arc
is deep in the I ndian Ocean

There are no more heartbeat signals
beyond this point

It's the biggest breakthrough so
far

instantly shifting the search
000 miles south

of the last military radar
contact

taking it into the jurisdiction of
the Australian government

and accident investigator Peter
Foley

They start looking here

a swathe of ocean running 00 miles
along the seventh arc

They estimate that the plane could
lie 10 miles either side

the maximum glide range of a

The seventh arc is over 1500 miles
from the nearest land

It will take two days for Australian
search vessels to get there

Two powerful storms have swept
through since MH0 disappeared

making the job of spotting debris
even harder

22 aircraft and 1 surface vessels
look for wreckage

and possibly even survivors

Surface debris is normally the first
step to finding a missing aircraft

but it is not a guarantee

Before MH0 the largest and most
expensive search in aviation history

takes place here 8000 miles away
in the Atlantic Ocean

Hunting for the wreck of Air France
Flight

What lessons lie amid this tangled
wreckage

for those searching for MH0?

On J une 1st 200

Air France Flight leaves Rio de
Janeiro Brazil,

carrying 21 passengers and 12 crew
to Paris

Weather reports indicate severe
thunderstorms along the flight path

Three hours and 5 minutes into the
flight

as the plane nears the equator

its onboard computers send a
burst of emergency warnings

then fall silent

Olivier Ferrante is in charge of the
French search team

The warning signals are his first
clue

o mantenance messages and an
mportant poston message

whch was very useful for a search.

It is a deep and remote stretch of
ocean

but the search team has every
advantage

A known flight path

an accurate final position

and then surface debris -
found within five days

And yet despite initial optimism

it takes two years
four expeditions

and 0 million to find the plane

Yes I remember that moment when we
found the wreckage.

I was very careful because weve
had false alerts before

and then t turned out to be
geology

or not what we were lookng for.

Why does it take so long?

Using the data meticulously
collected by the search team

combined with the latest
visualisation technology

it is possible to drain the Atlantic
Ocean

revealing the hostile world that
faces every deep-water search effort

I mmense water pressure

freezing cold total darkness

and hidden dangers everywhere

Finally at 12800ft

the shattered remains of Air France
Flight

Engines

wheel assemblies and other heavy
items lie together

The twisted remains a testament
to the force of the impact

Smaller lighter objects stretch
along more than

a third of a mile of sea floor

equivalent to ten New York City
blocks

And a critical realisation

the sea bed wreckage is nowhere near
the surface wreckage

It's almost 2 miles away

I nvestigators spend about two years

searching in this very
challenging area

not realising that ocean currents

have carried debris far from the
crash site

The long and frustrating search for

the French aircraft carries a
warning

Even with debris and an accurate
final position

when a plane goes into deep water
it's very hard to find

A sobering thought for the team
searching for MH0

Ar France was very dffcult

wth our area of 7 square
klometres

but ts nothng compared to the
surface that the search teams

have to search for MH7
ts much more dffcult.

I n the southern I ndian Ocean

investigators look for surface
debris for over two weeks

Even with the aid of satellites
they find nothing

One of the greatest ntal
mysteres

and that has transcended the entre
perod of tme that weve been

lookng for ths aeroplane
wheres the debrs?

With no debris they need to find
another way to narrow the search

So they focus on MH0's black box
data recorders

Each has an underwater locator
beacon or U LB

I n water they emit an electronic
ping

with a range of just over a mile

Find the beacons and you find the
plane

But time is running out

By the time specialist pinger
locator technology reaches the

search zone there are just three
days of battery life left

teer . teer .

I nvestigators have only a few days
to locate MH0's black boxes

before their locator batteries run
out

Faced with a vast search zone

they decide to focus on commonly
used air routes

Australian Navy vessel Ocean Shield
steams to the point where the air

route to Perth intersects the
seventh arc

The team looking for Air France

also use pinger locators in an
attempt to discover the crash site

They begin listening for signals

within days of the plane's
disappearance

I n most cases the pnger locator
works

And that the assumpton before Ar
France **7.

Ships scour the search area for 0
days

but here - nothing

The hunters wonder

are the locator beacons lost
or destroyed?

Returning to the remarkable drained
seascape of the Air France

wreckage reveals the scale of the
problem

The sea floor here is 12800 feet
below the surface

deep in the Mid -Atlantic Ridge

And here amid the wreckage

nestling in the remains of the
tailplane

the black boxes one with its
locator beacon still attached

A search ship passed directly over
here but detected nothing

The metal wreckage may have blocked
the signals

or they could have been damaged by
the sheer force of the impact

I thnk they were unfortunately
damaged at that stage.

I nvestigators listening for the
MH0 black boxes

can only hope they'll have better
luck

They monitor the ocean for 15 days
using three ships equipped

with sensitive listening technology

and military aircraft launching
sonar buoys

They do detect some signals

but conclude it's just random
interference

It's another disappointment

But at this low point

there's a dramatic new lead

A team from Curtin University in
Western Australia

runs a network of sensitive
underwater microphones

called hydrophones

positioned all around the
Australian coast

They're designed to monitor
earthquakes

Antarctic ice and wildlife

And remarkably one of them has
picked up an unusual noise

one hour and 1 minutes after
MH0's last communication

with the I nmarsat satellite

When we looked at the data from that
hydrophone

we found one sgnal that looked as

though t had nterestng
characterstcs.

Is this the actual sound of MH0's
final moments?

U N DERWATER NOISE

Alec Duncan's team look for other
audio recordings

so they can calculate a geographical
fix

One hydrophone does tell you a

certan amount about the source of
the sgnal

so you can tell whether ts a
whale

you can tell whether ts a snappng
shrmp

you can tell whether ts just nose
from the moorng

but you cant tell drecton.

Fortunately other agencies are
listening too

for the sound of illegal nuclear
tests

with technology that can
accurately pinpoint the source

Just off the coast of Cape Lewin
in Western Australia

the Comprehensive Nuclear-Test- Ban
Treaty Organisation

runs a listening post

specifically designed to detect
and locate illegal nuclear tests

The station has three hydrophones
set 125 miles apart

They can determine the direction of
a sound to within half a degree

and calculate the distance to the
source over thousands of miles

And astonishingly

this network has detected the exact
noise

heard by the team from
Curtin University

The analyss of the data from Cape
Lewn told us that

that sgnal had come from the
northwest

and gave us a farly accurate
bearng

along whch the source of that
sgnal must have been.

It's a tantalising clue

and the sound does come from the
direction of the seventh arc

But when the scientists crunch the
numbers

the source of the sound is far to
the north-west

so far beyond the current search
area

that it's considered not worth
further investigation

Our concluson was that the sgnal
was

most lkely to be of geologcal
orgns

such as a small undersea earthquake

but we cant completely rule out the
possblty

that t came from somethng to do
wth the arcraft.

Faced with a new disappointment

the search team moves to a different
approach -

searching the sea floor itself

using towed sleds carrying sonar
scanners

It will be the largest undersea hunt
in history

But before it can even start
there's a new problem

This part of the I ndian Ocean has
never been surveyed in detail

The sleds will be close to the sea
floor

and no-one knows exactly what is
down there

The MH0 team need a simple way to
create a snapshot

of the sea floor across the vast
search area

They find help in an unexpected
place

The team hunting MH0

across 000 square miles of
I ndian Ocean face one big problem

More than * of the sea floor area
n ths regon

has not been covered by shps wth
modern equpment

satellte navgaton mult beam
echo sound.

Geophysicist Walter Smith thinks he

might be able to fill in the blanks
using satellites

The satelltes actually cannot see
the bottom

they're not seeng the ocean floor.

What they're dong s usng radar to

measure varatons n the seas
surface heght.

It's possible thanks to gravity

Mountains on the sea floor create
their own gravitational attraction

surrounding water is drawn towards
the mass

creating measurable changes on the
surface

The smallest ones I can resolve are
a klometre or less n heght

and they move the sea surface about
fve centmetres

and the satellte has no problem
resolvng that.

It doesn't have the resolution to
spot the wreckage of an aircraft

but is enough to help create a
basic map of the sea floor

and identify hazards in the MH0
search zone

What does the data reveal?

Using the exact information gathered
by Walter Smith's team

it's possible to drain away the
I ndian Ocean

to show what the ocean floor
actually looks like

As the water flows away

it exposes a world no human has ever
seen before

Dramatic cliffs more than twice the
height of the Empire State Building

Fault lines plunging almost 20000ft
deeper than any canyon on land

A volcano-dotted valley running for
100 miles

Operating underwater scanning
vehicles in this terrain

will take a huge amount of skill and
luck

Armed with their new map of the sea
floor

the search team deploys the latest
in subsea technology

Travelling deep underwater

these towed sleds begin to scan the
sea floor

and they will be guided by a
game-changing new clue

It comes from further detailed
analysis

of the final I nmarsat signal from
MH0

Engineers crunch the numbers

and discover something shocking

I n its final moments
the plane descends rapidly -

almost certainly because
after 5 hours in the air

it's run out of fuel

Boeing engineers then simulate what

happens when a exhausts its
fuel,

making it possible for the first
time

to recreate the likely final minutes
of MH0's mysterious flight

The right engine flames out first

The autopilot compensates for the
imbalance with a hard left turn

Minutes later the second engine
flames out

With no power the autopilot
switches off

leaving MH0 in a long spiral
descent

I n every Boeing simulation

the crash site lies within 2 miles
of the seventh arc

These dramatic new insights

immediately reduce the size of the
search area

from 000 square miles to just
2000

But that's still three and a half
times the size of the search area

for Air France

Ths s a massve search area

ts magntude s larger than any
prevous search I've ever worked on.

Deep-sea salvage expert Andy
Sherrell

analyses all the data that's been
gathered underwater

Oddly enough when I frst heard
about MH7s dsappearance

my wfe was n labour wth our frst
chld.

The news came on about the
dsappearance of the flght

and my wfe looked at me and she
sad

* Now that's a job you're not gong
to get nvolved wth.*

Andy has been involved ever since

Using his knowledge from six
previous investigations

including a search for Amelia
Earhart's Lockheed Electra

As soon as the underwater scanning
begins

it identifies shapes that could be
man- made

o when you're revewng the sde
scan sonar

t comes down n a waterfall dsplay

and you can see the dfferent
ntenstes of you know

soft sand versus hard rock.

Guided by the scans

the team investigate 80 locations in
detail

but find no trace of MH0

Then in May 2015 the sonar picks
up something new and exciting

It was a typcal lookng debrs
feld

that defntely warranted more
nvestgaton.

The debris field covers an area
similar in size

to the wreckage of Air France

Could this finally be the remains of
MH0?

They launch an autonomous underwater
vehicle

armed with state-of-the-art sensors
to take a closer look

Using the actual data it recorded
that day

it's now possible to drain away the
water from over the site

revealing the most hopeful discovery
so far in the hunt for MH0

At one end a pile of chains

then a 2ft- long metal box

rusted machinery

and finally three metal anchors

They've found a shipwreck

Its wooden hull long rotted away

The site strewn with coal,
probably cargo on its final voyage

They haven't found MH0

but in these dark uncharted
depths

they're casting light on tragedies
from a different age

The investigators discover three
other wrecks

including this iron- hulled sailing
ship upright on the sea bed

And a modern fishing trawler

nets stretched out across the sea
floor

Proving that their technology

can locate and retrieve objects as
small as a piece of coal

After 15 months of detailed
scanning

covering 2000 square miles of sea
floor

there's still no sign of the missing
plane

We have a very hgh confidence that

we would have detected the plane n
that search area

so all these factors gves us
really hgh confidence

that the aeroplane debrs feld s
not n that area.

The investigation continues

still guided by just two key pieces
of evidence -

the I nmarsat calculations and
Boeing's flight performance data

Then suddenly a third line of
inquiry

brings hope of a breakthrough

On a remote island on the other side
of the I ndian Ocean

000 miles from the search area

a piece of metal washes up on a
beach

and it looks like it comes from an
aircraft

I n J uly 2015

a council worker on Reunion island

a French territory in the I ndian
Ocean

stumbles upon an unusual object on a
beach

It's called a flaperon

There is one on each wing of a
Boeing

part of the mechanism that makes
it rise or fall

Boeing quickly confirms that its

serial number matches that of the
missing plane

It's the first piece of physical
evidence

that MH0 ended its flight in the
ocean

It s my hope that ths confrmaton

wll at least brng certanty to the
famles and loved ones.

The suffering of the families

attracts the attention of amateur
wreck hunter Blaine Gibson

and sets him off on a remarkable
personal quest

I was very very touched very
moved

and realsed that I needed to go do
what I could to solve ths.

And what I learned
what that nche was

was that there was no off cal
search

for debrs that washed ashore.

Blaine consults ocean drift experts
who direct him to Mozambique

where he makes an immediate
discovery

And t was a trangular greyshaped
pece of debrs that sad

* No tep* on t.

Clearly arcraft.

I felt an enormous sense of
responsblty...

...because I realsed that I had just
found the second pece of debrs n

the greatest avaton mystery n
hstory.

Boeing confirms that the " No Step"
debris is from MH0

Blaine has found it 50 miles away
from the main search zone

Still acting alone
he continues to search

We just found on Rake beach

ths pece of debrs
we have not pcked t up yet.

Almost 0 pieces of debris thought
to come from MH0 are recovered

all on the western side of the
I ndian Ocean

Blaine Gibson finds 15 of them

One piece stands out from the rest

The most sgnfcant to me

and also to the nvestgaton

was the case around the TV screen on

the back of the seat n front of
you.

Ths s the one that brought tears
to my eyes.

Ths s perhaps the last thng that
somebody saw.

Ths s what anyone who fles on a
plane would recognse.

Debris like this from inside the
passenger cabin

confirms that MH0 hit the water
hard

Another piece of debris helps
resolve a key question

I nvestigators already believe the
plane ran out of fuel

But as it fell towards the ocean

was someone trying to save it with a
controlled ditch?

The flap extends on an internal
support track

I nvestigators discover that the
track has left

impact marks inside the flap

That can only happen if it's
in a retracted position -

strong evidence that the plane was
in its normal cruising state

as it fell towards the sea

The flap supports the theory that
the plane ran out of fuel,

and suggests that no-one at that
point

was trying to ditch or save it

But the debris doesn't only confirm
how MH0 crashed

it opens up a new and exciting
line of inquiry

that could narrow the search area

I thnk ts enormously mportant to
fnd the plane

because whle planes crash
routnely...

...they don't just dsappear and I
thnk ths terrfes people.

Oceanographer David Griffin believes

that the very first piece of debris
recovered

the flaperon on Reunion island
may be the key

Ths could be a good spot I reckon.

The wnds probably a bt stronger
I guess. Yep.

Ths s a Boeng 777 flaperon off
another arcraft not MH7.

Well use ths end to snk t agan
all rght? Yep.

David Griffin is trying to recreate
the journey of the flaperon across

the ocean in the hope this will
pinpoint the crash site

He compares the flaperon's movement
to these buoys

nown as ocean drifters

they're used to daily all around the
world to monitor ocean currents

We very quckly determned that
these replca flaperons

moved about ten centmetres per
second faster downwnd

than an oceanographc drfter.

That may not sound like much

but when he compares it to known
data about the currents

in the seventh arc on the day of the
crash

it helps him estimate the flaperon's
travels

during the 500 days it was afloat

It's an extraordinary discovery

To narrow the search zone even
further

David Griffin investigates another
strange feature of the debris

I n addton to knowng where thngs
are found n Afrca

the other key thng s where thngs
have not been found

and that's Australa.

Why has no debris been washed
ashore in Australia?

Some of the ocean currents in the
search area

flow east towards the country

A plane crashing here should leave
evidence on Australian beaches

o ths mmedately tells us that

all those potental paths of the
seventh arc

where the flow s strongly towards
Australa

they're essentally ruled out.

When David Griffin looks at the
historic drifter data

from the day MH0 disappeared

he finds three places on the seventh
arc

where the current would have pushed
debris

away from Australia towards Africa

Here around * you have ths area

where everythng s movng to the
west.

Agan up at everythngs movng
to the west.

If the plane crashed in one of these
areas

it would explain why debris was not
found in Australia

And critically only one of these
locations

matches his calculation of the
flaperon's journey

o that led us to propose that *
outh

s the most lkely area for the
crash.

5 South is an area that was not
checked

during the initial surface debris
search

For investigators
it's an exciting new lead

but it comes too late

It s wth some level of sadness

certanly wth a great deal of
frustraton and dsappontment

that I stand here and acknowledge
that the search

the underwater search effort
has been suspended.

On January 1th 201

after almost three frustrating
years

the search for MH0 is called off

It was record breakng n terms of
the tme t took

the area that was covered.

Theres never been a search as bg
by an order of magntude.

But will David Griffin's flaperon
experiment

persuade authorities to search 5
degrees south?

It takes almost a year to answer
that question

and new evidence from the skies

Oceanographer David Griffin has a
new theory

He thinks MH0 is in an area called
5 South

And in 201 he finds more evidence
pointing to the same place

I remember the day when I frst saw
those mages n hgh resoluton

and I thought
*My *od ths really helps.*

15 days after MH0 disappeared

a French military satellite captured
images of possible man- made debris

in the vicinity of 5 South

At that time the location wasn't
considered a high priority area

But four years later
it's a different story

And I thought that ths s really
exctng

ths could be used to restart the
search.

A new year brings new hope

I n January 2018 salvage company
Ocean I nfinity

sets out on a brand - new privately
funded mission

The seventh arc is still the focus

but they expand the width of the
previous search zone

and move towards the new area
identified by David Griffin

Once again Andy Sherrell is
on board and this time

he has eight autonomous underwater
vehicles or AUVs

One deep tow vessel would do a swng
of about days onste

and over those days on ste
they'd cover

about * square klometres.

*sng eght A*Vs smultaneously

we can cover that n about three to
four days.

It's a high-stakes gamble

If they find nothing
they don't get paid

Ocean I nfinity searches the new
priority area at 5 South

I n five months

they cover an area almost equal in
size

to the original sea floor search

But frustratingly

they find no trace of MH0

The two search efforts have covered
almost

2000 square miles of sea floor

1 times the size of the Air
France search zone

I n May 2018

the Malaysian government announces

that it will not support any new
searches

Is the wreckage of MH0 waiting to
be discovered in the 8000 square

miles of seventh arc search zone
that remains unexplored?

Do clues to the mystery lie a few
feet outside the circle of light

and knowledge already cast by the
search teams?

Only time money and the continued
desire for answers

separate us from the moment of
discovery

But the knowledge hard -won over two
search efforts and four years

will be invaluable for any future
hunt

Using the extraordinary data

gathered by hundreds of
investigators

we can drain the area around the
seventh arc

to reveal what MH0 might look like
when it is found

The debris will stretch out over
thousands of yards

The engines will be in one piece

the fuselage in thousands

The nearby black boxes will reveal

if anyone was in the cockpit at the
end

Emergency oxygen cylinders may show
if the plane

depressurised in-flight whether

intentionally or the result of an
accident

And personal electronic devices
could reveal the experiences and

fate of individual passengers and
crew

It will be a profound moment

one that Andy Sherrell has
experienced before

Its a really surreal knd of
sombre moment

because you realse all of a sudden
that you've found ths graveste

ths place where all these people
pershed.

Its sad but ts also a bt
of a relef because you know

that from that pont forward some
answers are gong to come back.

I thnk you have to reman
optmstc and f you don't search

you don't fnd so hopefully at the
end they wll fnd t.

Subtitles by Red Bee Media