Chapter 1065: Mr. Chang has figured out everything

After receiving the turbine blades delivered by China, Wilson began to organize personnel and prepare for the accident simulation restoration.

Of course, it is impossible to blow up another Trent 900 on the test bench.

Even though Rolls-Royce is a big company, it cannot withstand this kind of gameplay.

Instead, it is carried out in specialized laboratories.

The simulation scope is also limited to the timing, trajectory and destructive force of the blades themselves being thrown out after the turbine overspeeds.

It is certainly impossible to directly find out the cause of the accident by this method, but it can at least prove whether there is a fatal defect in the core engine of Trent 900 itself.

In fact, this is exactly the core purpose of Wilson, or rather, the project director Panos Watson.

For Rolls-Royce, the top priority is to buy enough time for the Trent 900 and calm public opinion.

As long as it can be proven that there is no problem with the core engine, Watson will dare to let Bodi and Airbus restart negotiations.

By then, all the rumors will naturally subside.

As for the accident itself...

There are still more than two years between now and the A380's scheduled first flight.

Even before air testing using the A340 platform, it will take another year.

As long as the problem does not involve the core machine, other problems should be able to be fixed no matter what...right?

In short, even if the problem is not solved well, it can be delayed for one to two years.

It's all worth it.

It was for this reason that, starting from the next day, Ren Bingda keenly discovered that the number of people working with them in the final assembly workshop was actually less than in the early morning.

More importantly, Wilson himself, who had previously vowed that "you can come to me if you have any problems", is also missing.

Although this was objectively more conducive to the subsequent operations of the three people, he, who had multiple tasks, could not accept the feeling of being kept in the dark.

The group sent them here not for the purpose of doing voluntary labor for Rolls-Royce to solve the problem.

Instead, it is an opportunity to enhance China's position in the international aviation industry.

Fortunately, for Chinese technicians of Ren Bingda's generation, being "left aside by foreigners" is a very normal experience.

So he skillfully took the opportunity of asking someone to help check the production documents and made some indirect inquiries to several British engineers around him.

Only then was I shocked to learn that the accident simulation had already begun.

One of the young men who came with him blushed when he heard about this and said that he must find Wilson to seek an explanation.

However, he was stopped by Ren Bingda.

“Mr. Ren…”

His eyes were full of confusion.

"It's easy to see the King of Hell, but it's hard to deal with the little devil. Wilson did it on purpose, making us stop our work frequently to look for him, and unable to devote ourselves to work."

As Ren Bingda explained, he turned around and returned to the pile of broken parts.

"You can't just sit there and wait, can you?"

The other party followed behind and asked:

"And I think this accident simulation will be very helpful for us to understand Rolls-Royce's engine design and testing process."

At this time, the other calmer person has realized the new problem:

"But Mr. Ren, there are only three of us in total... Considering that we take turns to rest, most of the time there are only two of us working at the same time. If one of us is assigned to participate in the accident simulation, then doesn't that mean there will only be one person left to complete the task assigned by Mr. Chang?"

For a moment, the situation seemed to be at a stalemate.

Faced with this situation, Ren Bingda smiled as if he had everything under control:

"It's impossible to just wait..."

"We already have a general understanding of the situation here. Bodi will be here soon. We have a meeting with Panos Watson, the general manager of the Trent 900 project, before noon. We can contact him directly and sort out these things..."

It was only at this time that the other two reacted.

Wilson is not the easy-to-see devil that Ren Bingda describes.

But a troublesome little devil.

Ren Bingda took out a notebook from his pocket and slowly began to record the damage of the parts corresponding to each number. As he wrote, he continued:

"As for the manpower issue... we don't need to participate in their restoration test throughout the whole process. We just need to participate in the technical meeting after the test. It will take about two hours a day at most. We can participate if we have some time."

"Of course, when we meet Watson later, we still have to ask to participate in the whole process, so that it will be convenient for bargaining later..."

……

Sure enough, everything was just as he expected.

As project managers, Watson and Bodie couldn't go back on their word like Wilson did.

After all, the agreement reached previously had clearly stated that the Chinese delegation was allowed to participate in the investigation throughout the process.

If the latter is excluded in such key links as accident simulation and reconstruction, then in the end even the investigation report cannot be signed.

However, Wilson, who was called to the conference room temporarily, was obviously well prepared and also brought out the contents of the agreement.

They said that the accident restoration workflow involves the core parameters of the Trent 900 and the technical secrets of their testing team, which are exempted parts of the agreement.

After a stalemate, both sides had to take a step back.

The Chinese side no longer insists on participating in the entire accident reconstruction process, but the final restoration result report and regularly held technical meetings must have at least one person from the Chinese side present.

In addition, Ren Bingda and his two colleagues also obtained permission to directly access the external accessories of the turbine and its production materials.

Anyway, for Rolls-Royce, since the core turbine parts are all produced in China, there seems to be no need to hide the things outside the casing.

However, for the Chinese investigation team, which is well-targeted, this seemingly subtle change can have a qualitative impact on work efficiency.

In the half day before that, every time they found a suspicious component, they had to find the British engineer nearby to compare it with the production documents.

But others also have their own tasks and are not specifically responsible for this matter.

I can only help out in my free time.

Now that you can check it yourself, it is equivalent to skipping the most time-consuming process in the middle.

Therefore, after taking turns to rest that afternoon, the progress of the remaining two people was an order of magnitude higher than before.

To the extent that even Ren Bingda himself did not expect it.

Before Wilson had even finished the first phase of the accident reconstruction, they had found what they were looking for...

On the morning of the third day, Ren Bingda, who was checking the turbine accessories group as usual, suddenly heard an excited but obviously suppressed voice:

"Mr. Ren, I think I found it!"

"Ok?"

Ren Bingda stopped what he was doing and looked up.

However, he was not as excited as the other party.

First, this work was really boring and monotonous. After working non-stop for three days except for eating and sleeping, even Ren Bingda felt a little numb.

Secondly, he himself had discovered several highly suspicious parts before, but after comparing them excitedly, he found that either they were designed that way from the beginning, or the damage was obviously caused by secondary damage.

None of them have anything to do with the cause of the accident.

Therefore, at the beginning, he didn't actually have much expectations.

It was just a routine matter. He brought the notebook to the subordinate, ready to find the corresponding technical information according to the number for comparison.

This time, however, he didn't even have time to write down the part number.

Just look carefully in the direction the other person is pointing.

His eyes suddenly widened.

It was a short piece of pipe.

It should be used to transport lubricating oil or fuel.

Due to the burning and subsequent explosion, the middle part of it has been somewhat deformed.

At first glance, it seemed to be no different from hundreds of other similar wreckages.

However, if you look closely at the cross-section of the pipe you will find.

The thickness of its tube wall is inconsistent.

In other words, it's an eccentric tube.

Basically, such designs are only made in some extremely special environments, or when it is necessary to fight against self-weight.

Turbine accessories for aircraft engines are obviously not included in this list.

In other words, this can hardly be a design requirement.

The most likely thing is that something went wrong during production!

In an instant, Ren Bingda felt ten years younger.

My legs don’t hurt anymore, and my waist isn’t sore anymore.

He stood up with a bang, trying hard to endure the dizziness caused by the lack of blood supply to the brain, and found the list of external accessories and production technical documents of the receiver from the side.

After comparing them one by one, I soon found the location of this short tube.

High and medium pressure turbine bearing casings, lubricating oil delivery pipelines.

As expected, in the design documents, this is a short tube with a uniform wall thickness of 0.91mm.

Although the two did not have any precision measuring tools at hand, they could see with the naked eye that the thinnest part was not even half a millimeter.

"What a coward..."

Looking at the production technology documents in front of him, the young man next to him was full of emotion, and even spoke in dialect:

"Mr. Ren... To be honest, I still don't quite believe it..."

This kind of quality problem, which is so outrageous that it can be seen with the naked eye, is simply unimaginable for someone like him who only started working in the mid-90s.

However, it passed two inspections by the first-tier supplier and Rolls-Royce itself, and was installed on this test Trent 900.

Ren Bingda, who was standing next to him, remained calm on the surface, but his slightly trembling hands clearly revealed his inner shock:

"It's really a slippery oil pipe..."

Before this trip, Chang Haonan specifically instructed that special attention be paid to turbine accessories, especially the fuel and lubricating oil supply system.

Although he did as he was told, he still had some doubts in his heart.

After all, there are thousands of external possibilities that may cause axle breakage, and it is difficult to smoothly deduce the real cause.

But now the iron reality was before him, and he had no choice but to believe it.

At this time, Ren Bingda suddenly remembered that he seemed to have talked about turbine accessories with Chang Haonan half a year ago.

"Please check which supplier produced this turbine accessory."

There was a clicking sound of a mouse wheel turning nearby.

"It's... Kawasaki Heavy Industries."