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Chapter Fifty Seven
Large aircraft manufacturers have set up special "ground aircraft teams" to deal with various types of aircraft accidents.
Professionals from the ground aircraft team are responsible for everything from aircraft maintenance to air disasters.
After the Emirates Airline 411 crash occurred 23 years ago, Boeing, as the aircraft manufacturer, of course sent a professional on-site investigation team to investigate the crash together with NTSB and GCAA. But this time, they did not send anyone again, but communicated with the investigation headquarters online to provide technical support.
At 4 pm Dubai time, which is 7 am Chicago time, the Emirates 411 investigation headquarters and Boeing's ground plane team started a video conference.
This was a long meeting, and Zhuo Huan asked Su Fei to send all the data of the 124 experiments to Boeing.
After Boeing received the mail, it immediately arranged a laboratory to process and analyze the experimental data. Boeing has one of the most advanced aviation laboratories in the world, so it only took forty minutes to prepare the experimental materials, set up and design the relevant equipment, and start the reverse confirmation experiment after obtaining the experimental data.
On the projection screen, the gray-haired person in charge got the data from the laboratory, and his face gradually became hard to look. He flipped through the information, raised his head, and said: "The experiment on the wing fuel tank exploding and the shock wave damaging the outer skin of the flap has ended. One of the three experiments successfully achieved the peeling off of the outer surface and the inner steel structure. But Mr. Patrick, I I don't think this will affect the normal operation of the aircraft."
Zhuo Huan looked at him: "Talk about it."
A Boeing staff member said: "We have heard about the emergence of new witnesses in Emirates 411. This experiment of yours can reasonably explain what the'flap fragments' seen by the witnesses are going on. But The skin on the outer surface of the flap and the engine fan are two different things."
"The wing skin of our Boeing 777 is made of super duralumin, which is extremely compressive. In the flap part, the glass fiber reinforced plastic structure is used. In the previous experiment, it was confirmed that the inside of the fuel tank could be destroyed by an explosion. The FRP of the flaps makes the super-duralumin material peel off from the wing. But this does not mean that the fan blades inside the engine will also be cracked by the shock wave."
The person in charge of Boeing ordered his subordinates to transmit the video taken during the experiment to the screen.
"Mr. Patrick, investigators, please take a look. Boeing certainly does not falsify or use inferior materials when making airplanes. However, wing materials and engine materials are still incomparable. The fan blades of the engine are called ' The jewel in the crown' is the most important part of an engine. Rolls-Royce's Trent 800 engine uses micro-laminated composite materials for its turbine blades..."
Physical data, experimental videos, photos of material fractures...
The person in charge of the Boeing ground flight team methodically presented the evidence to everyone, and he spoke eloquently, with a confident tone. His confidence comes from his trust in Boeing Aircraft and Boeing Labs.
In the end, he concluded: βIndeed, an explosion inside the fuel tank may cause the flaps of the aircraft to fall off. This has been confirmed by you. But Mr. Patrick, I must regret to tell you that such an explosion equivalent, such a shock wave It is absolutely impossible to destroy the fan blades of a Trent 800 engine! No matter how close they are, this is absolutely impossible."
After reading all the information, Zhuo Huan raised his head: "Before today, have you ever thought about the explosion inside the wing fuel tank of a Boeing 777, which can smash the surface of the aircraft, but there is no other external performance at all."
The head of Boeing was taken aback. He was silent for a moment and said: "I haven't thought about it."
Zhuo Huan chuckled: "Air crashes are made up of countless coincidences. The four words'unpossible' should never be said to an airplane."
There was a few seconds of silence in the video conference.
Fucheng raised his head and looked at Zhuo Huan's back.
Zhuo Huan leaned on the table, tilted his head slightly, looking at the Boeing staff in the projection screen with indifferent expression. Everyone thought that he was speaking to Boeing, a warning, and a reprimand. But for some reason, looking at his back, Fu Cheng suddenly felt that... his words may also be said to Mai Fei F485.
Fucheng said: "Teacher Zhuo, there is news from Lowens."
Zhuo Huan turned his head to look at him, his eyes met, and he asked, "The experiment went well?"
Fucheng nodded gently: "Very smoothly. He is packing up experimental data and sending it to UAAG's mailbox..."
"Received the mail!" Su Fei cheered excitedly, and he said to Zhuo Huan: "RIP, do you want to decompress the data directly now?"
Zhuo Huan: "Projected onto the screen." After a pause, he curled his lips: "Right, send a copy to Boeing by the way."
Boeing's face changed slightly, and he keenly smelled something strange.
Five minutes later, densely packed experimental data and line graphs were projected on the big screen. The head of Boeing curled his eyebrows and looked at the data. The more he looked, the heavier his heart became.
Zhuo Huan put his hands in his pockets, and said lightly: "Twenty-three years ago, neither the NTSB laboratory nor the Boeing laboratory could prove that the fan blades of the Emirates 411 became fragments because of what happened. Now, in Under the premise of proposing the explosion shock wave, the section inspection experiment will be carried out..."
"Facts have proved that the air crash is composed of countless coincidences."
At the same time, NTSB headquarters in Washington, USA.
Lowens submitted the report of the experiment to the deputy director Andrew.
Levi Andrew's gaze swept across the black English letters quickly. His gaze was calm. After reading this not a long experiment report, he looked up at his henchmen: "Sure enough, there is still a chance."
Lovins could not hide his joy: "Yes. Normally, with the strength of the fan blades of a Rolls-Royce engine, it is impossible to break even if it encounters an explosion shock wave very close. The explosion shock wave that can break it, It must be able to destroy the wing of the aircraft directly. However, Director Andrew, the hypothesis that you put forward 23 years ago is not wrong. The reason why this broken fan blade is broken is because of its own material. A special accidental change. This special change is very accidental. Perhaps it will be discovered during the next engine maintenance inspection. But unfortunately, it was found that its material was damaged, which was an air disaster."
At the same time, the staff of Boeing's ground plane team fell silent after seeing the experimental data.
However, they still decided to apply to the NTSB to obtain a few pieces of the fan blade fragments of Arab Airlines 411 and conduct another experiment. But now, they do not express any opinions.
Everyone at UAAG has no opinion on this.
After the video conference was over, Old Joseph spread his hands and said: "Large companies are always like this. In any case, you only believe in yourself, and you have to witness it with your own eyes before you can believe it."
Lina smiled slightly: "I agree with you, old Joseph. The same is true for Mai Fei. But this is not just because of their distrust of other organizations, but more of their trust in their own quality. And this trust , Is built on the basis of thousands of experiments. For example, McFei F485, before it is designed, every part of it has undergone at least 1,000 experiments."
"It's 1,316 times."
Lina turned to look at Zhuo Huan: "Reid?"
Zhuo Huan used a slight force and stood up straight. He looked at his friend, chewing gum, and he still looked like the whole world owed him 10 billion. "The 1316 experiment is the oil volume sensor of the aircraft. Because the settings of the McFly F475 are basically continued, there is no improvement."
Lina smiled and said, "Okay."
The two-month accident investigation came to an end, and only the final accident investigation report remained.
Zhuo Huan: "Fucheng, you will write the investigation report this time."
Fucheng was taken aback, he looked at a man: "Okay."
Old Joseph was surprised: "Fu, although the cause of the air crash report is clear, many areas have been designed with very professional experimental problems. Can you?"
Fucheng smiled: "No problem."
Old Joseph laughed: "I just talk about it casually, even if you ask me for help, I can't do anything."
There are generally two types of aircraft accident investigation reports that UAAG participates in.
Zhuo Huan personally writes accident reports for accidents that are too professional and require extremely high experimental requirements, such as JAL 917.
There is no excessively demanding professional requirements for the cause of the air crash. Others can write about it, such as the American Airlines 4012 written by Joseph Sr.
This is not to say that Fucheng and others can't write a highly professional air crash investigation report, but that for Zhuo Huan, he doesn't need to think at all. Others may need to spend some time sorting out the experimental data.
The JAL 917 was because of the influence of electromagnetic waves on the MCD magnetic chip detector. Every data and physical formula required accuracy. A wrong number is a huge difference. This time, the explosive equivalent and the physical properties of the aircraft materials are also key parts of the investigation report.
Zhuo Huan just left it to Fucheng to do it casually. Although everyone was a little surprised, they didn't feel that there was anything wrong.
But Old Joseph still asked, "Reid, don't you write it yourself."
Zhuo Huan raised his eyes to look at Fucheng, his lips curled up: "Should I write?"
Fucheng looked at him steadily, shook his head, without much expression on his face. "Need not."
Su Fei: "Anyway, we have to organize data and information."
GCAA investigator Maiha also smiled and said, "Well, we will also help write it together."
Everyone laughed.
Looking at their relaxed and cheerful appearance, Uncle Zhuo was not happy anymore.There was a hum of dissatisfaction in his nose, and Zhuo Huan sneered disdainfully, stepped up to his seat and sat down.He put his hands around his chest and stared at Fucheng, who was talking to Su Fei.However, such a strong gaze did not seem to pass to Fucheng.
Fucheng didn't look at him at all.
Zhuo Huan: "..."
Ah.
Twenty-three years have passed since the 411 air crash of Emirates, and there have been similar cases of the confirmed cause of the air crash, so everyone is not in a hurry.
GCAA does not have the tradition of NTSB. Every time an accident investigation is over, a summary reception is held.
But this does not hinder GCAA's deep pockets.
Maiha smiled and said to everyone at UAAG: "At the seafood restaurant of the hotel tonight, we have prepared some delicacies, which is considered a celebration. We will go together at that time."
The author has something to say:
Zhuo Anxi: Heh, Fucheng, won't you come and ask me for help?
Fu Chengcheng: I really don't understand what Teacher Zhuo is thinking every day!