The Boeing 737 Max-8 aircraft that crashed on Sunday

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Jonathan Druion

Ethiopian Airways flight 302 crashed on Sunday morning killing all 157 folks on board.

It is led to a severe disaster for Boeing. The corporate manufactured the 737 Max Eight aircraft that was concerned. The mannequin has now been grounded globally because the strain mounts in a seek for solutions.

Present estimates of the variety of 737 Max Eight and 9s grounded ranges from 350 to 370. That represents a major value for airways utilizing the aircraft as routes, schedules and passengers are affected.

The race is on for investigators to seek out solutions – and quick.

What do we all know?

The flight knowledge recorder (FDR) and cockpit voice recorder (CVR), or black packing containers as they’re typically known as, arrived in France on Thursday morning for inspection by the Bureau of Enquiry and Evaluation for Civil Aviation Security (BEA), the French model of the UK’s Air Accident Investigation Department.

Ethiopian inspectors selected to ship the black packing containers to France regardless that there are related services in Nigeria, Dubai, Singapore, Germany and right here within the UK at Farnborough.

However it’s the nation the place the accident occurs that makes the choice on the place the black packing containers go.

The BEA in France is a extremely revered organisation with appreciable experience on this space.

As well as, a part of the engines on the Boeing 737 Max Eight are manufactured by a French American conglomerate so this may occasionally have performed a component.

How did they discover the black packing containers?

One of many largest challenges in air accident investigation is finding the black packing containers after a crash.

In fashionable plane, the black packing containers are fitted behind the plane as historical past has proven that this space tends to maintain crash impression higher.

Within the occasion of Ethiopian Airways flight 302, the aircraft is reported to have hit the bottom nostril first at excessive pace. The rear of the plane was due to this fact nearer to the floor which made it simpler to seek out and retrieve the black packing containers.

Now they have the black packing containers, what comes subsequent?

Firstly, what state are they in?

Black packing containers are engineered to resist large power with the intention to defend the all-important knowledge chips inside. However the casing could possibly be crushed which suggests soldering it open.

Connectors inside is also broken which suggests beginning the evaluation could possibly be delayed additional.

As soon as knowledge chips are in hand, the knowledge saved must be interpreted.

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The BEA tweeted an image of a black field from the Ethiopian Airways aircraft

However the way in which that knowledge is saved shouldn’t be the identical throughout the trade. Recording differs between particular plane fashions, operators and airways.

For utterly correct knowledge, conversion info held by Ethiopian Airways will likely be vital. It’s hoped that conversion element is available.

Every black field holds 25 hours of flight info.

The final flight would be the prime focus however earlier flights (over the 25 hour interval of the recording) are additionally more likely to be checked out to see if there have been any anomalies.

What about investigators in Ethiopia – what are they ?

The investigation in Ethiopia will likely be led by an investigator from that nation, however will likely be assisted by groups from around the globe, all with an curiosity within the crash.

The US could have despatched investigators from the Nationwide Transportation Security Board, because the Boeing 737 Max-Eight was manufactured there.

Additionally it is thought French investigators are on web site as a result of black packing containers making their solution to France.

Three investigators from the UK arrived in Ethiopia on Tuesday to supply help, however plans are being made for them to return to the UK.

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Investigators in Ethiopia are persevering with to seek for proof

What are the investigators on the bottom ?

How investigators work on the bottom differs from nation to nation depending on the lead investigator. However usually, separate groups will deal with totally different disciplines.

Core areas embody:

  • Engineering: Understanding how the aircraft’s workings, design and programs contributed
  • Operations: Interviewing eye-witnesses, flight crew, operators and regulators
  • Flight knowledge: Black packing containers, surveillance and en-route radar, CCTV, nonetheless and video cameras
  • Human components: Understanding how the sequence of occasions led to the accident.

The investigation within the discipline is barely the beginning of a really lengthy course of.

As soon as every thing has been documented and photographed, and witnesses have been contacted, the wreckage is normally recovered and transported to a safe facility for in depth evaluation.

Timing – what can we count on?

Work on the black packing containers will start in Paris on Friday.

The primary picture of a black field reveals the harm it sustained after the crash and subsequent explosion.

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Bereaved households have been paying their respects on the crash web site

When any knowledge has been extracted, it should then be handed again to the lead investigator in Ethiopia, who will determine on the plan of action and what info to launch.

A former investigator advised me that the group in Paris will work day and evening due to the worldwide curiosity on this crash and the impression it’s having on airways, passengers and, most significantly, the bereaved households.

Curiosity within the what occurred with Ethiopia Airways flight 302 has been heightened due to reported similarities with a Lion Air crash in Indonesia in October 2018. Each flights have been utilizing the Boeing 737 Max Eight.

Nevertheless it could possibly be tomorrow, the weekend or subsequent week earlier than we begin to get the primary solutions.