"What did you say? Alternate landing?" The second captain David looked at the first captain in disbelief: "Schneider, do you know what you are talking about?"
Just now, the cabin manager called the second captain David, who was still resting, to the cockpit according to the captain Schneider's instructions. As a result, the captain David was woken up halfway and heard a shocking news in a dazed state.
Rather than news, it might be more accurate to call it a suggestion.
That's an emergency landing!
Alternate landing in Vienna!
Schneider didn't seem to agree with the decision to make an emergency landing. He glanced at Xu Cang who was sitting behind him, and that look said a lot.
"Him?" David immediately realized that the person who made the decision was not Schneider, but the young man behind him who looked to be in his twenties.
Compared to Schneider, who is already in his 40s, Captain David looks much younger. However, the age difference does not affect the authority of Captain David. It can even be seen that David is more dominant when there are two captains at the same time.
Schneider was a little in awe of Xu Cang, but David was much calmer.
"Are you the commissioner for the Asia-Pacific region?" David turned around and glanced at Xu Cang, with some doubt in his eyes.
Xu Cang nodded slightly: "Yes, any problem?"
"No, I just met someone in the same industry." David extended his hand to Xu Cang: "David Jeffers. CAA, ICAO flight specialist for Europe."
Xu Cang raised his eyebrows slightly. It was his first time meeting the ICAO flight commissioner. He shook hands with David and said, "Nice to meet you."
David seemed to organize his words: "Schneider said that we need to make an emergency landing in Vienna. Is that what you mean?"
"Yes." Xu Cang smiled and said, "If you think Vienna is too far, Munich is also OK. Or Innsbruck is also OK. However, considering the blizzards in the Alps, Munich is slightly better."
The plane is now flying in the northern foothills of the Alps. Munich and Innsbruck are both on the northern side of the Alps. However, Munich is farther away from the mountains and is less affected by the snowstorm in the Alps.
However, Xu Cang's answer did not seem to directly address David's question and was somewhat irrelevant.
Xu Cang certainly knew that his answer was problematic. He was just expressing an attitude, which was that an alternate landing was definitely necessary, but the location could be chosen by you.
David's face darkened. "Whether it's Vienna, Munich or Innsbruck, we, British Airways, don't have any relevant agreements. If we need to make an alternate landing, we can only make an alternate landing in Turin."
"No, no, no. If we want to make an emergency landing in Turin, we have to fly south through the Alps. That's not good." Xu Cang was firm: "It's just a little more troublesome if there's no agreement, but it doesn't mean we can't make an emergency landing. British Airways is such a big company, I think they can handle it."
"Then I think we should not make an emergency landing." David snorted. "An emergency landing always requires a reason. What is your reason? When there is no abnormality in the engine data, how can you judge that there is an engine failure based on the flame at the engine air intake that does not represent any sign? What exactly is that flame? Is it the reflection of starlight or moonlight? Are you sure?"
There was no special change on Xu Cang's face: "I just want to prevent some tricky situations from happening."
"Did the so-called difficult situation happen, or are there any reliable signs?" David raised a finger: "Are you really a flight specialist? If so, what is the meaning of MEL's existence?"
Some people believe that if there is any problem with an airplane, it cannot fly anymore because of safety issues.
However, this is not in line with commercial requirements. Therefore, both the MEL of the Minimum Release List and the CDL of the Configuration Defect List allow the aircraft to fly with certain faults in certain circumstances.
That is to say, even in the eyes of aircraft manufacturers and various national civil aviation authorities, some failures are tolerable, that is, there is no absolute safety.
Is there anything unusual about the flame at the No. 2 engine intake? A little bit.
However, as Captain David said, it might be the reflection of starlight or moonlight or some unknown light source. In fact, it was not an abnormal situation.
Are there any abnormalities in the engine data? No.
Let's take the most common example. For example, if the outermost layer of glass on the windshield of a 737 is broken, is this a potential danger? Is this an abnormal situation? Is it more direct and urgent than the inexplicable fire from the engine air intake that comes from nowhere?
However, in dealing with the outermost windshield, Boeing's suggestion is to continue flying without any need for an emergency landing. It is just necessary to control the speed of the aircraft in a low-altitude environment.
It is actually quite unprofessional for a professional pilot to make an emergency landing at the slightest problem, and airlines hate such pilots extremely.
It was based on this idea that Captain David publicly questioned Xu Cang's professionalism.
"Perhaps you misunderstood. Just now I thought I only needed to pay a little attention to it, until I found out that the engine model of this aircraft is PW4000-112."
Just now, Xu Cang did not insist on an alternate landing, but just said to strengthen monitoring. He also thought that it was a bit excessive to force a forced landing just because of this, but when he accidentally discovered that the engine used by this plane was not General Electric's GE90, but Pratt & Whitney's PW4000-112, some bad memories began to attack Xu Cang.
This is not Xu Cang's overreaction, but there are examples to support it, and there are more than one, but not at this point in time.
"Oh?" Captain David understood what Xu Cang meant. The key to the emergency landing was not the engine fire, but the PW4000-112, or the combination of the two. "Are you saying there's something wrong with the PW4000-112?"
Although Xu Cang looked very young, Captain David still knew Xu Cang's name. After all, in order to ensure that he passed the EASA review, Xu Cang followed the British Airways route in the UK.
"Why, can't you doubt it?"
Captain David thought for a moment and said, "Xu Cang, the PW4000-112 must have gone through various tests to be able to be loaded on the 777. You..."
"The engine of the Boeing 777 stalled during a test run on a polar route. Of course, there was a fuel problem, but the engine at the time was the PW4000-112. This engine is obviously not as tolerant of fuel with impeded fluidity as the GE90. If the test can cover all problems, such a low-level failure should not have occurred." Xu Cang said: "Or do you think that Boeing engineers' judgment on the GE90 and PW4000-112 is problematic? Except for the initial model, all subsequent Boeing 777 models use the GE90. Doesn't this explain the problem?"
Xu Cang's words left David speechless.
The PW4000-112 was the one that had problems during the trial run, and it was also the PW4000-112 that was abandoned in the subsequent models. This should not be a coincidence.
David opened his mouth and subconsciously glanced at the engine data. At this moment, it was still operating normally: "So, because of your prejudice against PW4000-112, you should make an emergency landing, or do you mean that all Boeing 777s equipped with the relevant engines need to be grounded?"
"Of course not. It's just that in certain special situations, we need to remain more vigilant." Xu Cang said, "For example, is there a possibility that the flames at the engine intake are caused by the low-pressure fan blades scraping against the inner wall of the engine?"
"Impossible!" David denied directly: "If that were the case, the engine vibration value would become abnormally high. However, now the vibration value of the No. 2 engine is not only within the limit, but also not much different from that of the No. 1 engine."
The low-pressure fan blades of the engine are tightly connected to the inner wall of the engine. As long as there is a scratch between the blades and the inner wall of the engine, it will definitely cause the engine vibration value to be high. In the case of severe ice accumulation, any ice attached to the fan blades will cause inconsistent rotational torque, resulting in abnormal engine vibration values.
If what Xu Cang said was true, the tips of the engine blades had scraped against the inner wall and produced sparks, then the engine vibration value would definitely have reacted, and it would definitely not be like it is now.
"This question..." Xu Cang didn't want to explain it to David in too much detail. After all, it involved information about the future.
In fact, Xu Cang could not explain the problem of PW4000-112 in detail. He was a pilot in his previous life, not an aircraft engine designer and manufacturer. His knowledge of the problem of PW4000-112 came from the shocking news that this engine exploded twice in one day.
Ask Xu Cang why he thinks there is something wrong with this engine?
Xu Cang said he had experienced this engine exploding twice a day, and the situation was extremely similar to the current one.
Ask when did it happen?
Could it be that Xu Cang is saying now that we will know after waiting for a few years?
Xu Cang said in a speculative tone: "It may be that the low-pressure fan blades are slightly twisted due to metal fatigue. Therefore, the twisted blades only scratch the inner wall of the engine intermittently, so the flames are only intermittent and not strong, and there is not much reflection in the engine data."
"Metal fatigue?" David pondered for a moment and looked at Captain Schneider, but Schneider shook his head. This was obviously beyond his ability.
David looked at Xu Cang, then at Schneider, and he felt overwhelmed.
If someone else had said this, David would have thought Xu Cang was a psychopath. But the point was that Xu Cang was not a psychopath, he was an extremely capable pilot, and what he said seemed to make some sense, which was what bothered him the most.
what to do?
David felt his mind was a mess.
"The situation may not be serious now, but once the failure starts, it will be out of control." Xu Cang added.
David's face changed. "You mean the fault is uncontrollable? Even if the engine fan continues to twist, at most the engine vibration value will be high. What kind of fault can be uncontrollable?"
Xu Cang pursed his lips and said, "How about you ask the British Airways headquarters?"
David hesitated, he couldn't make this decision. So, David nodded and said, "I will try to contact the headquarters. This is my bottom line."
Even though Xu Cang said so much, he could never make the decision to make an emergency landing based on Xu Cang's words. The only thing David could do now was to convey Xu Cang's intention to the headquarters and let them make the decision.
Xu Cang did not make any more requests, but just said one word: "Okay!"
…
In the president's office on the top floor of British Airways headquarters, Vice President Jerry held a pen and kept tapping on the table, showing his extremely irritated heart.
This office was not his, he was here only because the president of British Airways was trapped in a manor in the Alps waiting to die. As the vice president, he took over the president's authority in an emergency.
The president is not the highest leader of a company, but he is in an extremely important position to manage daily affairs. In the absence of the president, many things simply cannot be carried out.
Moreover, in addition to the uncertain life and death of the president, British Airways also encountered a huge problem - a strike!
At the top of the 40-story building of British Airways headquarters, Jerry could still hear the huge shouting below. The sound came from nowhere else but from the British Airways employees who were on strike.
There was another person in the office, the financial director of British Airways. His face was even uglier than Jerry's, so the strike was about wages, which directly touched his area.
"How much do they want to increase the price?" Jerry held his forehead, feeling upset.
"15% for flight crew and 10% for ground staff." The financial director was so angry that his teeth were itching: "In addition, some middle and low-level managers also need salary increases."
When Jerry heard the increase, his heart skipped a beat: "How dare they ask for this!"
The situation for ground staff is barely acceptable. After all, their average salary is originally lower, and they have lower requirements for salary increase.
However, the average salary of flight attendants is almost twice that of ground staff, and the increase is even greater, which is a huge burden on British Airways' finances.
Not to mention, the middle and lower-level managers who earn higher salaries are also expected to demand salary increases. How can it be reasonable to increase the salaries of employees without increasing the salaries of leaders?
However, if this happens, British Airways’ salary expenses will probably explode, right?
"Jerry, the European civil aviation market is extremely hot right now, and there is a huge shortage of relevant practitioners. At this point in time, a salary increase is inevitable."
In the past, there was no shortage of people, and the initiative was in the hands of the airlines. Now there is a shortage of people, and civil aviation practitioners, especially flight attendants, need a training cycle. The gap cannot be filled in a short time, so the offense and defense are reversed, and the initiative is in the hands of the employees.
Now even the most inexperienced employees can feel the prosperity of the civil aviation industry. Originally, they wanted to wait and let the airline make a decision. Unexpectedly, British Airways did not even announce any salary increase during this period, so they had to fight for it themselves.
"What do Air France and Lufthansa say?" Jerry said helplessly, "They should be in a similar situation."
As the most representative airlines in Europe, Air France of France and Lufthansa of Germany will certainly encounter the same difficulties as British Airways. Jerry needs to see how Air France and Lufthansa react.
As a result, the CFO said, "Both Air France and Lufthansa have reported salary increases. It was not requested by the employees, but it seems that the management took the initiative to release it. The average increase for Air France is 8%, and for Lufthansa is 9%."
"Then why is it 10% and 15% here?" Jerry slammed the table and said, "Isn't this bullying?"
The CFO's mouth twitched. The employees' idea was simple: if your airline doesn't take the initiative, then when I go on strike, won't I have to ask for more?
In fact, it is not that British Airways is stingy. It is just that compared with Air France and Lufthansa, British Airways' financial situation is not as good as those two. There is no way, Britain is isolated overseas and cannot eat the biggest cake in the civil aviation market within Europe.
It was precisely because of the lack of confidence in its own financial situation that the management hesitated to increase wages when the European civil aviation market was extremely hot recently. As a result, it was this hesitation that directly angered the British Airways Union.
Jerry paused for a moment and asked, "If we follow their demands, can the company survive?"
"It's very stressful." The CFO said solemnly, "The European internal market is indeed quite strong now, but the largest share is still taken by Air France and Lufthansa. We are limited by our geographical location, and our growth is not as good as Air France and Lufthansa. Moreover, our company's staff is somewhat... redundant. If we increase salaries as they demand, this year's financial statements will not look good."
In fact, according to the current development of the European civil aviation market, even if British Airways accepts the salary increase request, its profit this year will still be much higher than in previous years. However, this kind of thing is afraid of comparison. Compared with itself, the profit has indeed increased, but compared with Air France and Lufthansa in the same period, British Airways' performance is likely to be inferior.
The slightly poor performance in the financial statements will affect investors' confidence in British Airways, which is quite fatal.
Jerry rapped on the table again, feeling more and more irritated.
He had no friendship with the president, so he didn't care whether the president trapped in the snowstorm was dead or not. Of course, in extreme terms, it would be best if he died, so he could take over. As a result, he encountered such a big problem just after trying it out. If he couldn't handle it well, even if the president died and the position of the president was vacant, it would be a big question whether he could take over smoothly.
This strike issue is closely related to his future and he must not be careless.
Even if the president returns later, it would be great to take this opportunity to show up in front of the board of directors.
"We should have laid them all off when the air situation was bad before," Jerry said bitterly.
Among the three airlines, British Airways, Air France and Lufthansa, Lufthansa has the highest profit and British Airways has the lowest profit, but the number of British Airways employees exceeds that of Lufthansa, which shows how redundant the internal staff of British Airways is. With so many people, if the salaries are increased, the total salary expenditure will also explode .
Jerry thought about it and said, "If we can control the salary increase ratio to 8%, will there be room for maneuver in the financial statements?"
Given the current market performance, it is impossible not to increase salaries. If we don't increase salaries, the pressure will be too great. Jerry just wants to increase salaries less so that it will be easier for the finance department.
There is a certain amount of room for manipulation in financial statements, but if the amount is too large, it will be difficult to use legal and conventional means. However, if the amount can be controlled to a relatively small amount, there is a lot that can be done.
"Eight percent." The financial director did some mental calculations and said, "Seven percent is the best rate for a salary increase. Eight percent... should be fine."
"The best thing is to not add a penny," Jerry cursed.
The CFO knew that 8 percent was probably Jerry's limit, and if he pushed it down any further, it would easily anger the union again.
Jerry calmed down a little and asked, "How many people are on strike this time?"
"Less than 20%, barely enough to maintain normal operations." The financial director said: "I feel that this number is carefully calculated by the union. This is just a warning."
Obviously, the union did not want to tear each other apart at the beginning. Therefore, the number of people who went on strike was not too large, and it did not affect the daily operation of British Airways. However, this does not mean that the union is unable to gather more people. This is just the union's ultimatum to British Airways.
If British Airways does not compromise, there will be more than just these people on strike next time.
"These guys." Jerry certainly knew the nature of the union. If British Airways did not meet their demands, it would only face an even more embarrassing situation.
Financial Director: "The 8% salary increase is a bit far from what they need. I don't know if they are willing to accept it."
"Driven by the current European market, financing has become easier. As long as today's financial statements look good, we will definitely be able to raise a large sum of money tomorrow. Therefore, no matter how difficult it is, we must control the salary increase ratio." At the end, Jerry muttered, "I should have taken the initiative to increase salaries earlier. Now..."
Jerry waved his hand irritably: "You go out first."
The CFO was about to leave, but after taking two steps, he suddenly thought of something: "Jerry, where is Alpine Manor?"
Jerry's face froze, and then he frowned: "You care about him so much?"
Hearing this, the financial director laughed out loud: "We all hope he stays there forever, don't we?"
For any leader, the most direct request is for the superior to vacate his position.
Under the current circumstances, Jerry hopes that the president will not come back, and so does the CFO.
"Uh, hahaha!" Jerry also laughed: "As long as you do this well, you should be able to change your position."
The CFO understood what Jerry meant and said, "Our president is really pitiful."
After saying that, the CFO chuckled and left the office.
Seeing the CFO go out, Jerry tapped his finger on the screen of his mobile phone.
Salary increase is one thing, but the most important thing is to solve the problem with the union. As if he had made up his mind, he picked up his phone and dialed a number.
Soon, the call was connected, and Jerry immediately said respectfully: "Richard, it's me, Jerry!"
…
Just as British Airways was hit by a strike and the outside world was in an uproar, its operations control center was also filled with a tense atmosphere.
Not long ago, Flight 531 called the satellite phone and reported a very... novel "failure".
"Abnormal flames coming from the engine air intake?" The director of the Operations Control Center listened to the crew's description of the aircraft's condition with some surprise. He was also confused: "That's it?"
"That's it." Captain David's voice came out: "Except for the abnormal flames at the air intake, the rest of the indicators are normal."
"Abnormal flames coming from the engine air intake..." The director of the operation control center also has some knowledge of flying, otherwise he wouldn't be here, but in his knowledge, there doesn't seem to be any corresponding fault: "Is it St. Elmo's Fire?"
"It shouldn't be. There are no external conditions to produce St. Elmo's Fire now, and St. Elmo's Fire should appear on the edge of the engine air intake, not inside the air intake." It can only be said that this ICAO commissioner in the European region has some basic skills and knows even the extremely unpopular St. Elmo's Fire well.
The director of the operations control center thought about it for a while but still couldn't figure it out, so he called his assistant and asked him to go to the engineering department to ask for advice.
"If possible, ask Pratt & Whitney headquarters whether there is a possibility of related failure of the PW4000-112 engine." David added.
This kind of abnormal flame appearing at the engine air intake is indeed quite rare, and it is only appropriate to ask the engine manufacturer's technical department, so the director of the operations control center agreed to David's request.
"Please wait a moment. I will give you a reply within ten minutes."
"good!"
In the cockpit, Captain David hung up the satellite phone. He was silent for a moment, and suddenly asked Xu Cang: "What if the engineering department and Pratt & Whitney's technical department report that this is not an engine failure?"
"If you're asking me what I think about the alternate landing?" Xu Cang said firmly, "I've made my choice. No matter what they say, an alternate landing is necessary. All I want now is for us to reach a consensus on this idea."
David and Schneider looked at each other . They couldn't understand why Xu Cang was so distrustful of the PW4000-112 engine.
Captain David did not ask about whether to make an alternate landing, but followed Xu Cang's words and asked: "Do you think the best alternate landing place is Vienna?"
"Not the best." Xu Cang pointed directly to the plane's navigation page. In addition to the plane's route, there were dots representing nearby airports, including Vienna Airport LOWW: "If we need to make an alternate landing, the plane must not go through Vienna. Vienna is the farthest alternate airport we can choose. If they can make a wise decision, Munich would be a better choice."
David was silent this time. It seemed that Xu Cang was really prepared for an alternate landing, even thinking of the alternate landing location and plan.
After a short silence in the cockpit, less than ten minutes later, the satellite phone's call light came back on. David immediately answered the satellite phone: "What's wrong? What's the reply?"
"The engineering department didn't find any matching fault symptoms. Pratt & Whitney said it might be due to reflection of night flight light or St. Elmo's fire that had drifted into the engine. As long as there's no problem with the engine data, it can fly normally."
"Oh, I see." David glanced at Xu Cang out of the corner of his eye.
This answer was not surprising to him, as these were the only two he could think of.
"Does this situation require an emergency landing?"
"Escalation?" The director of the operation control center was stunned. After a while, he asked curiously, "Why do we need an emergency landing? Why do you ask this question?"
In the eyes of the head of the operations control center, since neither his own engineering department nor Pratt & Whitney's technical department had indicated what the so-called engine air intake fire was a precursor to failure, then there was no reason to make an emergency landing.
This should be an easy decision. David, the veteran pilot, shouldn't ask such a stupid question.
"Any other problems on the plane?" asked the operations control center supervisor.
"No." David coughed twice. "However, there is an ICAO commissioner for the Asia-Pacific region on the plane. He proposed to make an alternate landing... in Munich or Vienna."
"What? The ICAO Specialist for the Asia-Pacific region?" The director of the Operation Control Center frowned. "Who? We haven't received any notification from the ICAO Specialist to follow the plane. Have you verified their identity?"
"I checked with the control department." David said, "But he seems to insist on an emergency landing..."
At this point, Xu Cang directly inserted the handheld headset belonging to the observer seat into the hole, and at the same time switched the transmitter to a satellite phone, and then joined the call: "It's me, Xu Cang! I insisted on making an emergency landing."
"Xu Cang?" The director of the operation control center was stunned for a moment. He felt that the name sounded familiar. Soon, he realized: "Xu Cang, Jakarta!"
At that time, when a British Airways plane encountered volcanic ash in Jakarta, the entire British Airways flight department was in a panic. As the head of the operations control center, he was on the front line at the time. How could he not know the name Xu Cang?
"Yes, it's me!" Xu Cang said straight to the point: "I strongly suspect that the low-pressure fan blades of the No. 2 engine have been slightly twisted, and the flames at the engine's air intake came from the scraping of the fan blades against the inner wall of the engine. The situation is controllable now, but it may cause extremely dangerous consequences in the future."
"But the Pratt & Whitney technical department said that as long as there is no problem with the engine data..."
"At the beginning, Boeing said that there was no problem with the S2 switch of the 747!" Xu Cang roared directly.
The S2 switch incident of Boeing 747 still has some influence in the world's civil aviation circle. Although Boeing later suppressed the incident with its own ability, the scene before the incident when Boeing swore that there was no problem with the S2 switch is still vivid in people's minds.
As a witness to the S2 switch incident, Xu Cang's example really left the Operation Control Center Director with no way to refute it. If the words of those giants were really the Bible, many failures should not have happened.
"But it doesn't meet the requirements for an alternate landing." The director of the Operation Control Center also saw that it was Xu Cang who was speaking, otherwise he would have ignored him: "How about monitoring again? If there is really an abnormality, you can make an alternate landing at any time. You can choose the alternate landing field by yourself, and we will coordinate the follow-up support for you."
This route is basically over land, unlike transoceanic flights which have many restrictions on emergency landings.
The director of the Operation Control Center said that the aircraft engine data was normal, so it was impossible to make an alternate landing. There were no restrictions on land routes, so they would wait until something really went wrong before making an alternate landing. Trying their best to coordinate an alternate landing field for the crew was the only thing they could do.
In fact, it is not the fault of the Operation Control Center. There are many problems involved in making an emergency landing on an international route, which is much more troublesome than making an emergency landing on a domestic route. Therefore, there have been many times when an aircraft has problems on an international route, and the crew did not make an emergency landing abroad, but chose to wait until the domestic route before making an emergency landing.
Xu Cang is also a pilot and understands the concerns of the director of the operation control center: "Once the plane passes through Vienna, it will not be suitable for an emergency landing."
"What do you mean? Istanbul is available for alternate landing in the future."
Xu Cang was about to say something when his ears moved slightly. The extremely slight sound of wire twisting, which could only be heard in the cabin, suddenly became clearer. His body trembled and his eyes fell on the DU of the engine data. He saw that the vibration value of the No. 2 engine, which was originally normal and stable, began to slowly increase.
"Not good!" Xu Cang suddenly held his breath. "Once we cut through Vienna, we will be followed by the Balkan Peninsula and the Anatolian Peninsula, which are mostly mountainous. The middle Danube Plain near Vienna is the last large flat area."
Hearing Xu Cang say this, Captain David's face changed drastically: "Are you considering an emergency landing?"
According to the route, the area before Vienna was indeed the only plain area they passed through for a long time. The subsequent Balkan Peninsula and Anatolian Peninsula were indeed far less flat than the middle Danube plain.
The only explanation for Xu Cang's obsession with the terrain was that he was considering the possibility of an emergency landing on land. An emergency landing in a plain area was naturally much easier than an emergency landing in a mountainous area.
But, does the situation now require us to consider an emergency landing?
Is the situation so urgent?
For a moment, Captain David felt that he had lost the ability to think.
If Xu Cang is not a madman, then they have missed some key information and have misjudged the current situation.
Obviously, the director of the operation control center also heard the hidden meaning of Xu Cang: "Xu Cang, the current situation..."
At this moment, Xu Cang's right hand holding the microphone trembled violently. It was not him who was moving, but the plane.
This made Xu Cang's face turn pale. He could no longer maintain a calm and steady conversation with the director of the operation control center. He yelled, "Damn it, who saved you in Jakarta? How dare you doubt my words!"
However, just as Xu Cang finished speaking, his right hand began to tremble uncontrollably. At this moment, Captain David's thoughts were also pulled back from the conversation between Xu Cang and the Operation Control Center, and Captain Schneider also discovered the abnormality of the No. 2 engine: "The vibration value of the No. 2 engine is about to exceed the standard!"
"Shut down..." Before Xu Cang finished the word "shut down", he saw the fuselage of the plane was like a sieve, and the frightening and terrifying vibration swept through the cabin. Amid the exclamations of the crowd, the fire alarm of the No. 2 engine in the cockpit suddenly sounded.