The crowd was attracted by the voice, and turned their heads to find that it was a man of very short and thin stature.

If it were him, then "drill in and see" seemed like a viable option.

"Little comrade, which unit are you from? Why do I feel as if I haven't seen you? ”

Yang Wei looked at this volunteer person and felt a little strange.

It stands to reason that such a person with more characteristics should leave an impression when he meets him.

"My name is Lin Hui, I am an engine structure design researcher at the 606 Institute, and I was seconded to the test flight station here last month to carry out the ground test of Project 10 and the related support work of the first flight."

The other party reported his identity.

"When Comrade Lin Hui was transferred, Xiao Yang was on the side of Beijing Airlines, and it was normal if he hadn't seen him."

Xue Chiyu also explained on the side.

At this time, Lin Hui, who had already begun to change his uniforms, continued:

"In the second half of last year, I followed Changgong throughout the 606 Institute to improve the design of the turbojet 14 compressor, and at the beginning, we also had a lot of opinions on his decision to completely overturn the design of the high-pressure compressor, but later it turned out that Changgong's decision was completely correct."

"So this time I also believe that there is no problem with the conclusion he gave, but I think some comrades still have concerns about the judgment of the permanent worker, and dismantling the aircraft for maintenance is a delicate job, and we can't let everyone work with emotions."

This remark made the main owner Chang Haonan a little embarrassed.

However, he also knew that at this time, Lin Hui's choice to stand up was quite beneficial.

In-situ inspection is the least disturbed and most convincing method for the results to be interfered with by external factors, because the disassembly of the aircraft itself inevitably has a certain impact on the parts, and sometimes it is difficult to determine whether some small traces are left during the test or disassembly process.

Soon, Lin Hui, who was ready, walked into the test workshop with a flashlight and a camera.

The crowd followed closely behind.

I saw him glance at the rectangular air intake of the prototype 1001 for a few moments, and then with his hands propped up, half of his body deftly got into it.

Within a few seconds, the whole person had completely climbed into the air intake.

It has to be said that the rectangular adjustable air intake still has a clear advantage at this time.

If it is DSI, then the bag on the lip of the inlet must be blocking the person.

A few minutes of silence followed.

"There are some ...... on the surface of the fan blades Strange ...... White Traces! ”

"There are also cases of low-pressure compressors on the inner walls deep in the air intake...... Can't see clearly......"

The voice coming from the air intake had a strong echo, which made everyone's hearts sink.

Especially Xue Chiyu and Song Wencong, the two of them almost lost their temper and went directly to the edge of the air intake.

The former shouted directly inside:

"Xiao Lin, can you determine the nature of those white marks, is it damage or something else?"

"Wait a minute......"

Lin Hui turned around with some difficulty inside, put the flashlight in his mouth, and wiped it vigorously with his free hand at the junction between the root of the air intake and the engine.

"These marks can be erased, it should be some kind of ...... powder, as for whether there is damage here, it is not clear to see. ”

"I've gathered some white stuff, you can check it out when we get out......"

A few minutes later, Lin Hui, who was already sweating profusely, finally got out of the air intake again, still holding a piece of paper in his hand.

"That's it."

The paper was covered with tiny silvery dust, mixed with some metal wires and the like.

"What is this......"

Song Wencong dipped a little of his finger in front of him and observed it with a frown.

"Like metal chips?"

Soon there was speculation.

Zhou Ziquan, director of the test flight station, immediately felt dizzy, and then stood up and assured categorically:

"I take the party spirit and personality guarantee, there are absolutely no foreign objects in the test workshop, even the dust index is controlled by us, and metal chips are absolutely impossible!"

In this regard, before the start of the test run, everyone also did a personal inspection, and indeed as he said, the on-site environment fully met the test requirements.

"In any case, this proves that the hidden danger does exist, first take these powders to the laboratory to see if it is a metal, and if so, what kind of metal."

Although Xue Chiyu was also under a lot of visible pressure, he still calmly gave the command order:

"The rest of the people, bring the plane back to the final assembly workshop and prepare for a thorough investigation!"

At this point, no one expressed any further objections.

So the daughter who got married returned to her parents' house in only half a day.

……

Witnessed by almost all the people involved in the tests, the final assembly workshop exploded with amazing efficiency, and several important parts of the aircraft were dismantled that night.

The top priority, of course, is the engine.

Although Plant 132 does not have the ability to completely disassemble and assemble turbofan engines, it is not a problem to disassemble and inspect only a few parts, such as the fan and the first three blades of the low-pressure compressor.

"Report to Mr. Xue, after inspection, it was found that different amounts of white powder were found on the engine fan blades and the first two blades of the low-pressure compressor.

"The fourth-stage blades of the AL31FN low-pressure compressor correspond to a set of 400 chutes of the casing treatment ring cavity, so we can't disassemble this part for the time being, but considering that everything is normal on the surface of the third-stage blades, it means that the on-site treatment is timely, and the impact is controlled within a small range."

The report of Xu De, the person in charge of the final assembly, suddenly relaxed everyone's tense hearts.

In any case, there was no irreversible fatal damage to the engine.

The results of the tests for those powders were also available at almost the same time.

"These powders are titanium-aluminum alloy chips, and the main components are Ti-8Mo-8V-2Fe-3Al, as well as Ti-6Al-4V."

Lin Hui handed over the test report in his hand to Xue Chiyu,

"In terms of composition, it should be a mixture of TC4 alloy and TB3 alloy used in a large number of aviation fasteners, among which there are even large-scale debris with a particle size of about 1 mm found at the end of the air intake.

So far, Rurica has delivered only the first batch of two AL31FNs to Plant 132, one on Unit 1001 and the other planned for Unit 1003 (02 is a static testing machine and does not require the installation of subsystems other than the structure).

If one is scrapped during the local test car, then even the best result will have to delay the subsequent first flight.

And if there is a serious accident with the engine, it may even lead to the destruction of the prototype itself, and the impact is incalculable.

After the summary report was read, there was silence in the conference room.

After a few minutes, someone finally spoke.

"I think we should let the permanent worker say a few words."

"I think so."

"I agree!"

“……”

The 606 engineer (of course, the name is not called Lin Hui) who took the initiative to ask to drill in and inspect the engine blades after the first test run is real, it can be said that in reality, this person's carefulness largely saved the first prototype of the J-10, if this very hidden problem is taken to the sky, then the consequences are likely to be more than just the destruction of two engines, pay tribute to these engineer predecessors

(End of chapter)