Star Tour 6341 front cabin cabin.

After the plane entered cruise and cabin service ended, the flight attendant and flight attendant No. 3 ushered in the long-lost peace and sat in their seats chatting.

While we were just chatting, the steward suddenly stopped talking and held his breath, as if he was listening to something.

"Did you hear anything, like a sizzling sound?" The steward listened for a while and was still unsure whether he heard it wrong.

Flight attendant No. 3 also listened for a while, but didn't hear any particularly obvious noise, so he laughed and said, "Sister, did you hear it wrong? It's scary!"

The steward curled his lips and said, "Maybe I'm tired today and I'm hallucinating."

Today's fourth section is nearly full, and all kinds of chores are indeed very tiring. Now that we are in the last section, we are almost reaching the limit.

"It's the last paragraph, and it's not..."

Just as Flight Attendant No. 3 finished speaking, a loud bang was heard as the left front cabin door suddenly exploded, causing the heads of the nearest Flight Attendant and No. 3 Flight Attendant to buzz.

Before the flight attendant could react, he heard a commotion in the cabin. When he looked up, he saw that all the oxygen masks had fallen down.

"No, the door sealing collar is broken!" The flight attendant was also experienced, and she almost guessed the reason the moment after she woke up. But when she spoke, she actually spit out a piece of white mist, just like this

The environment in the airplane was already winter-like.

"Oxygen mask!" the flight attendant shouted flatly.

Each flight attendant's seat is equipped with an oxygen mask, just like the passenger seat, to be worn when the aircraft is decompressed.

Under the command of the flight attendant, flight attendant No. 3 also quickly put on the oxygen mask.

The flight attendant was worried. After taking a deep breath of oxygen into the oxygen mask, he took away the oxygen mask slightly, fumbled for the microphone, and quickly made an announcement to remind passengers to put on the oxygen masks.

She didn't know how high the plane was now, but just because of the failure of the plane door seal, she already felt dizzy and dizzy in just a few seconds after the plane quickly released pressure. This was a sign of hypoxia, until she quickly put it on

The oxygen mask provided some relief.

Such a rapid and severe hypoxic reaction undoubtedly indicates that aircraft are flying at extremely high altitudes. At high altitudes, once the aircraft quickly decompresses, a person who fails to put on an oxygen mask in time is likely to lose consciousness in a short period of time and eventually die.

"Passengers who are wearing oxygen masks, please check whether the passengers around you are wearing oxygen masks. If not, please help!" The steward took advantage of the opportunity and broadcast again: "Passengers who are helping please first confirm that they have put on oxygen masks."

Oxygen mask!”

It is good to help others, but you must ensure your own safety.

As soon as the flight attendant finished speaking, the plane suddenly began to pitch down. The flight attendant suddenly woke up: "It's starting an emergency descent!"

In the cockpit, the loud noise caused by the explosion of the sealing ring of the left front cabin door also reached Lian Shanxue's ears at the same moment.

Lian Shanxue, who had just taken over the control, was startled. Before he could figure out what happened, he heard the teacher on the left straighten up irritably: "What's the sound?"

As soon as the instructor's voice appeared, Lian Shanxue discovered that he saw a light layer of snow and frost on the windshield of the aircraft.

"This is......"

Lian Shanxue's hand slowly reached towards the windshield. She once wondered if she was dazzled.

But unlike Lian Shanxue's reaction, the instructor had experienced many battles, and he would have some instinctive reactions to certain noises from the plane.

Although he couldn't figure out what the inexplicable loud noise was, like a conditioned reflex, he instinctively looked at the booster panel.

When the aircraft decompresses quickly, a dull sound is likely to occur. The instructor does not know whether the aircraft has decompressed, so he feels it is necessary to confirm.

When the instructor raised his eyes and landed on the pressurization panel, or to be precise the cabin altitude and lift gauge, his eyelids jumped wildly.

At some point, the pointer of the cabin altitude gauge reached its end, and the value of the pointer of the cabin altitude gauge rose crazily. When I looked at the differential pressure gauge, the value directly showed that it was almost zero.

"The plane is cleared!"

The instructor's mind went blank. The cabin pressure difference was close to zero. That meant that the air pressure inside and outside the cabin was almost equal, and the aircraft had decompressed. The noise just now must have been caused by damage to the cabin of the aircraft!

"Relieve the pressure, oxygen...oxygen mask!"

The slightest bit of sleepiness was swept away in an instant. The instructor stood up and sat up straight. The plane was now at an altitude of 11,300 meters, more than 37,000 feet. If the pilot relieved the pressure here,

He can only stay conscious for about ten seconds. If he reacts slower, the consequences will be disastrous.

After all, Lian Shanxue was a little younger, so he didn't catch the instructor's intention at the first time. The main reason was that the instructor spoke too fast and couldn't speak as clearly as the steward. Lian Shanxue didn't hear clearly for a while and was still wondering.

What is the teacher saying?

However, it doesn’t matter if she can’t hear clearly. The rapidly rising height of the cockpit will tell her what happened in the next second!

As soon as the instructor put his hand on the oxygen mask, the cockpit altitude warning followed, and the sound warnings made it clear what the current situation of the aircraft was.

Lian Shanxue didn't hear the instructor's words clearly at first, but the moment the cabin altitude audio warning sounded, a memory like a conditioned reflex trained countless times on the simulator was activated.

"Teacher, hand over control!"

The instructor just handed over the control of the plane to Lian Shanxue. Lian Shanxue is the de facto PF. But as long as there is a dangerous situation such as decompression, the control rights must be transferred to the captain. The co-pilot must not be responsible for handling emergencies.

.

This requirement is plain and clearly written in the standard operating manual. It is for this reason that Xu Xian's previous behavior of usurping the captain's operating rights in the Kunyang River emergency landing incident attracted so much criticism.

Of course, the situation in Xu Xian's case is much more complicated, but it does not affect some people's dislike of Xu Xian.

After handing over control, Lian Shanxue immediately grabbed the oxygen mask. Once the aircraft is decompressed, the oxygen mask is the first priority. During simulator training, the instructor will always emphasize this.

As long as the pressure is relieved and the operation is completed, don't worry about anything else. Put on the oxygen mask first.

The pilot's oxygen mask is somewhat different from the oxygen mask that fell down in the cabin. The oxygen mask provided by the passenger's mask is disposable. Once the oxygen supply starts, it cannot be stopped, and there is a time limit, usually between fifteen and two.

It will be gone in ten minutes, but the pilot's oxygen can be supplied for a longer period of time.

Moreover, the oxygen mask of the airplane is not fixed with elastic bands. Instead, you have to pinch two red clips, then inflate the hose of the oxygen mask, and then put the oxygen mask on your head. After releasing the clips, the hose will

The oxygen mask is fixed on the pilot's head.

This operation has been practiced countless times on the simulator. Lianshanxue naturally put on the oxygen mask on his head without any lag at all.

For some old aircraft, after putting on the oxygen mask, you still need to select the MASK switch on the communication panel so that the microphone will switch to the oxygen mask microphone.

However, there are very few of these old-fashioned aircraft now. Most of them just put on the oxygen mask, and the communication system will automatically switch to the microphone of the oxygen mask, without the pilot having to switch manually.

Lian Shan Xuefei's aircraft falls into this type of automatic switching.

The reason for this design is mainly because we are in a hurry when decompressing. If we forget to switch the microphone, there will be no communication at all, whether it is between the crew or the crew and the control. When the time comes, the pilot finds out and says

To be honest, I was already stressed when I was relieved, so why didn’t I have to be even more anxious? In the end, I simply forgot about the switch.

Don't have too high expectations for people's ability to withstand stress, even for professional pilots.

However, when Lian Shanxue put on her oxygen mask and prepared to test the call, she discovered a problem!

The period between when she proposed to hand over the control and when she put on the oxygen mask was neither long nor short, but the left side never responded. If the left side did not respond, then it was not a complete control switch.

closed loop.

To be fair, even if the aircraft is decompressed, the high-pressure gas inside the cabin will flow out of the aircraft, causing a huge gas sound and becoming a noise that affects communication. However, the noise is not loud enough for two people not far apart to communicate with each other.

Can't even hear it!

Moreover, even if the oxygen mask is put on, it is necessary to verify that crew communication is established later. There is no response on the left side, and the subsequent procedures cannot continue.

At the moment of doubt, Lian Shanxue turned his head and looked to the left. Just one glance made his heart clench.

I saw that the teacher had clearly taken out the oxygen mask with his left hand, but he looked like a cooked shrimp. His back was hunched, he was clutching his stomach, his face was pale, and there were a few drops of cold sweat oozing out from his temples.

"Teacher, teacher, what's wrong with you?" Lian Shanxue asked the teacher through the intercom loudspeaker. She couldn't take off her oxygen mask now.

"Stomach...stomach hurts..." Lian Shanxue didn't know why the teacher suddenly became like this. She just saw him clenching his teeth when he spoke, as if all his strength was fighting against the pain.

But the weak voice and the slightly blackened lips could not show that the teacher was in a very bad state.

"My stomach hurts. How can I have a stomachache?" When relieving stress, some people have earaches and some have headaches, but I have never heard of stomach pains!

However, the teacher's almost distorted facial features and large beads of sweat showed that he was really not joking, and that he was really experiencing inhuman pain.

"This...this..." Lian Shanxue had never encountered such a situation before, and he suddenly panicked. This is different from what he was trained to do! How can the instructor control the aircraft in this state?

, could it be possible that she had to do the emergency descent procedure alone?

However, before Lian Shanxue could figure out what to do next, there was a thud and the plane suddenly began to dive downwards.

Lian Shanxue was startled. At a glance, he saw that the plane had actually broken away from the control of the autopilot, started to cancel the cruise mode, and entered a state of rapid descent.

Then, when Lian Shanxue was at a loss, the automatic driving disengagement audio warning sounded, and the A/P indicator light also came on.

Autopilot is down!

Even Shanxue's scalp started to feel numb. This situation far exceeded the content of rapid pressure relief and emergency descent.

No matter what, if the autopilot is disconnected, she must take over manual control.

Now this situation definitely cannot return to the previous height, so it is better to go with the flow and directly enter the emergency descent procedure!

Since the teacher can't control it now, she will complete the process of two people by herself!

Just when Lian Shanxue's hand was on the steering wheel, with just a slight movement, she felt the resistance on the control. For a moment, Lian Shanxue even thought that the control was jammed.

Her mind was buzzing at that time. If she really encountered control jams during the rapid release of pressure, it would be an unimaginable and terrible disaster.

Fortunately, God didn't play this joke on Lian Shanxue. She moved the steering wheel slightly and found that there was no obstruction to the ejector rod, but it was much more difficult to pull the rod.

Just at this moment, she thought of a possibility. When she turned her eyes again, she found that the instructor had already pressed his upper body on the steering wheel at some point and was unconscious.
To be continued...