Air India crash: What are next steps as probe looks for ‘full picture’? – National

Eyewitnesses and real wreck videos itself, those who have probe the Crash of Air India Flight 171 On Thursday, trying to put the “full photo” in what happened, say the experts in plane accidents, although it can take some time for the cause.

This investigation is already underway, the investigators having collected one of the black boxes of the plane – The flight data recorder – while the search for more victims in the accident that killed at least 241 on board and more on the field continues.

A man on board The plane survived the accident.

“I think it’s like any survey … You start with the easiest and most obvious stud, then you dig accordingly,” said Nigel Waterhouse, an expert in certification of aeronautical engineering aircraft.

“They will try to get the full image.”

Waterhouse said the first thing the investigators would do is to interview witnesses “as soon as possible”.

They will try to get information such as if the smoke came from an engine or noisy noises has been heard, as well as asking if the plane climbed, plunged or other “obvious things that people would notice”.

Videos taken from the plane and the airport will also be examined because it could give an overview of what was going on at the time.

Anthony Brickhouse, an aerospace security consultant based in the United States, told Global News on Thursday that the investigation objective was to answer three questions.

“What happened, why did it happen, and above all, which can be done to prevent it from happening again,” he said.

Investigators will also examine take -off conditions, including airport and weather, for potential impacts.

Although the interviews play a key role, examining the plane and black boxes – the flight data recorder and the cockpit vocal recorder – will be “very important” to determine the causes.

According to Brickhouse, the data recorder can provide information on the operation of the aircraft. The vocal recorder records voice and sounds and can not only resume communication between the pilot and the co -pilot, including the signs of stress in their voices.

“”Thus, the cockpit voice recorder will record the voice and the sounds, then we have what is called the digital flight data recorder, which has the capacity to record much more than 1,000 different parameters, “said Brickhouse.

“So, everything you would like to know about how this plane works, it will probably be on the flight data recorder.”

The data and the voice recorder also operates in partnership, Note Waterhouse, because the investigators can listen to the pilot and the co -pilot passing through their control list for takeoff, then reference them to the fact that the data recorder shows that the controls have been fixed.

He added that examining the leftovers of the plane will also help the probe, with the wreckage removed and analyzed to determine what was going on at the time of the impact.

“Thus, the data recorders will give indications to know where to start looking, then they will check with the real wreckage and all they can see from plane systems,” added Waterhouse.

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Even with all the data and interviews carried out, it is difficult to say exactly how long the information on the cause of the accident will be available.

If the cause of the flight was due to a single problem, the information could be known within two to three days, but delays could occur if the process is not as clear.

The United States also participated in the National Transportation Safety Board survey, Federal Aviation Administration, Boeing and General Electric involved.

Waterhouse said that if data recorders were to be sent to the United States for more in-depth examination, this could lead to logistical delays. In addition, discussions between India and American organizations to confirm the results could add to it.

Damage to black boxes could also create difficulties in the investigation, although it noted that the devices are built to withstand a fairly significant impact, it is therefore unlikely that the data is lost.

Although the data can be known in a short time, the process of publication of the results could increase time, because discussions may be necessary around things such as responsibilities and defects, causing legal conversations.

Brickhouse told Global News that the work done should help determine what caused the accident, which could help prevent future incidents from occurring.

“I am convinced that the second they meet something that could have caused this accident, the world will know and appropriate changes will be brought,” he said.

– With files from the Associated Press

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