“MAYDAY！ MAYDAY！ MAYDAY！ Blue Sky 9433, wing damage, request immediate visual landing and ground support. Xu Qing immediately declared a state of emergency.

Generally speaking, there are two different emergency call signs in civil aviation, one is PAN and the other is MAYDAY.

The PAPAN is a relatively minor state of emergency, indicating that the aircraft is in a dangerous situation at the moment, but there is no immediate threat to life for the time being.

MAYDAY is an immediate threat to life and safety that requires immediate assistance and prioritization.

In fact, according to the situation of Blue Sky 9433 just now, the threat of the first mountain is very intuitive and obvious, and it has caused a serious danger to life safety, and it can be announced that MAYDAY. However, due to some of MAX's unreasonable operations, and the extremely short time to encounter the threat of the first mountain, Xu Qing and the others completed the obstacle crossing before they could announce MAYDAY.

Relatively speaking, the second hill is far away, there is a lot of room for operation, and the out-of-control trim problem has been solved, although there are still some problems, but they are all within the controllable range, so there is no need to announce MAYDAY at all.

The intention of the regular instructor is that if the controller does not let them turn left, he will declare PANPAN, which is relatively less than MAYDAY's, but can also give the controller some priority authority.

However, from the oral accounts of the first pair, Chang Instructor was fully aware of the dangerous situation in which the plane was at this time.

According to the description of the first pair, the degree of damage to the wing may have caused the wing to break, and the speculation of the first pair is not groundless.

The wings are broken, and it's creepy to think about. Even if it is a Da Luo immortal, it can't handle a Boeing 737 with folded wings.

Now the situation is enough to announce MAYDAY!

The regulation just gave them a lot of freedom, but the premise was that they were allowed to follow the rules and procedures, however, the current situation was no longer enough for them to follow the procedures honestly.

No one knows what happens when a broken wing is, no one can guarantee that the plane will still be able to control in the event of a broken wing, and Boeing does not have a single checklist for a broken wing.

This is a desperate situation that no one dares to think of, and no one dares to set foot in a desperate situation.

From Xu Qing's anxious tone, the duty director already felt what a huge crisis Blue Sky 9433 was facing. In the last few minutes of landing, God played a big joke on them.

"Blue sky 9433, the airspace is unlimited, you can decide the landing method by yourself, no need to apply." At this time, the duty director grabbed the topic of tower control, and directly announced that Blue Sky 9433 could fly freely, and at the same time asked: "Blue Sky 9433, confirm the damage to the wing!" ”

Xu Qing immediately replied: "Some units have visually observed obvious cracks on the wings, and there is a danger of breaking at any time. ”

The duty director is also a person who has experienced strong winds and waves, and he also knows some flying knowledge, the wing is broken, he has been working in civil aviation for half his life, and it is the first time he has seen this situation.

No wonder the crew of the Blue Sky 9433 is so anxious.

"Broken wings, broken wings......" The duty director muttered to himself in distraction, even if he was not on the plane, but the feeling of oppression that almost suffocated him still lingered in his heart.

The right hand holding the microphone trembled slightly, if there was an accident during his duty that the plane crashed and people died, then his life's control career would be over.

"Blue Sky Runways 9433, 03, 04, 21, 22 are all open to you, and you can freely choose the landing direction." The duty director is now almost stopping the entire airport and the airspace of this field and letting Blue Sky 9433 play by himself, and that's all he can do.

The duty officer thought about it again: "Blue Sky 9433, you don't need to care about other things, I'll handle it, you just need to control the plane!" ”

Now all he can do is to arrange everything except flying to Blue Sky 9433, so that the crew can not worry about it, and the rest is left to fate.

After speaking, the duty director put down the microphone and yelled at the ground control seat: "Empty the planes on C, D, E, F immediately, immediately!" ”

These four taxiways are the four closest to the runway, and if the wings do break, there is no risk of deviating from the runway. If Blue Sky 9433 rushes off the runway and hits a plane on the adjacent taxiway, wouldn't it be even more of a catastrophe?

After giving the ground control instructions, he returned to the tower control again, and instructed the control: "Let the plane at the head of runway 22 break away from the runway and leave the four taxiways as well." Planes parked outside the runway, immediately enter the runway, and then break away. ”

In the control room, there was only the roar of the duty warden: "Clear two runways and four taxiways for me in three minutes!" ”

After commanding the various control seats, he said to the assistant again: "Contact the emergency state of the traffic control room and ask them to issue a new flow control, so flights with K city as the destination are not allowed to take off within an hour, and then adjust the flow control according to the situation of the field." ”

Xu Qing just mentioned that after landing, the runway needs to be occupied for emergency evacuation, which is already a definite thing.

Now, judging from the damage to the plane, the airport fire and emergency services will have to come at that time. Once the aircraft is stopped, a large number of vehicles and people will occupy the runway and its perimeter. In such a short period of time, the runway simply cannot be reopened.

At the size of City K, if only a single runway can be operated, then greater flow control is necessary until another runway is successfully opened.

Of course, this is only the ideal situation.

As for the less than ideal situation, the duty director didn't even want to think about it.

"Notify the airport fire and emergency department to assemble urgently!" The duty officer ordered to go down again.

At this time, the phone of the control seat of the tower rang, the staff answered the phone, and it didn't take long for the staff to put down the phone and shout to the director on duty: "Director, Blue Sky Air Operation Control ......"

......

After the duty director gave Blue Sky 9433 almost unlimited freedom, Xu Qing's face was still solemn.

Xu Qing: "Master, I won't move the flaps, just put the handle away!" ”

Normally, if there is an asymmetry of the flaps, the flaps need to be received at an indicated position less than or equal to the minimum. Like the asymmetry of the flaps that Xu Qing is facing now, the flaps should be closed. However, now Xu Qing they are spare maneuvering flaps. In the case of asymmetrical flaps, it is not allowed to spare the flaps for maneuvering, because there is no asymmetry protection, which may lead to the asymmetry of the situation worsening. Therefore, Xu Qing only followed the checklist and received the flap handle to the position of flap one, but did not spare the flap to retract it.

"That's it, the asymmetry is not very serious, and it doesn't affect the manipulation much." Teacher Chang agreed with Xu Qing's approach.

Judging from the flap finger table, the right flap is only a little bit away from flap one, and the deviation is really not very big.

"You put the leading edge device in reserve and see if you can release it, I'll drop the height first." Chang Instructor said, directly a throttle also received the slow train. Now that the plane has just cut through the head of runway 21, Instructor Chang is ready to turn 180 degrees directly and cut into the short five sides, not following the usual procedures.

Thanks to the weather today, the terrain obstacles below are in full view, and the terrain can be kept separated by visual view.

If you start to turn and descend continuously from the beginning of the runway, then the height of the blue sky 9433 is undoubtedly much higher, because the original five sides are not as short as they are now, so the instructor will directly receive the only remaining one to the slow car and start a relatively rapid descent.

When Instructor Chang began to turn and descend, Xu Qing began to put the leading edge device in reserve. The presence or absence of a leading edge device still has a considerable impact on the performance of the aircraft approach.

There is a leading edge device, that is, the trailing edge flaps are retracted and landed, and without the leading edge device, all the flaps are retracted and landed, and the difference in the approach speed between the two is a full fifteen knots, and the difference is very large.

The electric door of the standby leading edge device and the standby flap is the same, but the operation method is different. The standby leading edge device only needs to be lightly clicked on the electric door, so that the leading edge device will automatically be placed in the fully extended position.

Xu Qing followed the procedure to put the leading edge device in reserve, and then began to observe the leading edge device indicator. The scratch just now stuck the trailing edge flap, and I don't know if it will damage the leading edge device.

After knowing that all the leading edge device lights showed green lights, Xu Qing breathed a sigh of relief, fortunately, there was no problem with the leading edge device.

At this moment, the cabin suddenly sent a call request. After Xu Qing answered, the purser immediately said anxiously: "Some passengers reported that the crack on the right wing has become larger, and our flight attendant went to check it and saw it." ”

Just as the purser finished speaking, the plane suddenly rolled sharply, and the whole plane was blown to the right by a gust of wind.

Xu Qing used the call button on the steering stick, and his right hand was gently grasped on the steering stick. The roll without warning startled Xu Qing, and in order to stabilize his body, he was caught off guard and instinctively held the steering lever. The upper body was thrown out to the right due to inertia, and he held the steering stick in his right hand and pressed it to the right sharply.

Instructor Chang was actually not caught off guard by the sudden roll, but his reaction was not as big as Xu Qing's, and his recovery was faster than Xu Qing's. However, Instructor Chang did not expect Xu Qing's unaware right pressure plate, and he did not hold the plane, and the slope of the entire plane changed from a left slope of 20 degrees all the way to a right slope of more than 40 degrees, and it continued to increase.

Instructors don't even need to think about it, it must be the right wing broken.

Under the fracture of the right wing, the lift of the right wing is greatly lost, resulting in the inconsistency of the left and right lift. The lift on the left side is high, and the lift on the right side is small, and the plane will naturally roll sideways to the right. It's just that Teacher Chang didn't expect this roll to happen so suddenly, and so magnitude.

At the same time, due to the fracture of the wing, the aerodynamic performance of the entire aircraft suffered a devastating blow, and the lifting force fell off a cliff, and the blue sky 9433 was planted with the bird with folded wings under the hood.

When Xu Qing came to his senses and found that he had unconsciously pressed the plate, he quickly let go of his right hand holding the steering stick. At this time, the slope of the plane reached more than 50 degrees.

WITH ONE MORE BANKANGLE AUDIBLE WARNING IN THE COCKPIT, COUPLED WITH THE NEVER-STOP SPEEDING AND JITTERING WARNINGS, FOR A WHILE, THE SMALL COCKPIT SPACE WAS CHAOTIC.

Teacher Chang was taken by Xu Qing for a while, but his brain was not confused. After Xu Qing let go of the steering stick, after Instructor Chang couldn't feel the force on the steering stick, he immediately pressed to the left, wanting to level the plane.

At the moment when the instructor was leveling the plane, Xu Qing exclaimed: "Drop rate, drop rate." ”

Instructor Chang followed Xu Qing's alarm, just glanced at the descent rate, and hurriedly brought the rod at the same time as the left pressure plate, and the descent rate just now had exceeded three thousand feet per second, which was simply terrifying.

In order to control the descent rate, it is not enough to just bring a rod, which will only cause the speed to drop sharply, and then it will cause a real stall.

While pulling the bar, the instructor began to regain a thrust. He needs to stabilize the plane for a short time before re-approaching.

However, due to the chaos just now, even if the regular instructor's reaction was fast enough, it still had some impact after all. Just as he was adding a throttle, he forgot to keep up with the left side.

The abrupt thrust of the first shot did not have the help of the left rudder to stabilize the deflection of the aircraft caused by the single engine, and the inconsistent thrust on both sides caused the nose of the aircraft to rise for a short time, and then fell upside down to the right again.

The Chang instructor and Xu Qing, who had just stabilized the plane, had their hair standing on end, and they had just gotten out of the dangerous state of the big slope, and now how could it start again.

The state of going and returning to the right made the regular instructor stunned for a short time, and it was this short moment that the regular instructor forgot to stabilize the pole.

How do you make an airplane increase its speed? The most conventional way is to increase the throttle while holding the lever steady. This allows the aircraft to accelerate.

If you refuel abruptly but do not hold the lever steady, the aircraft will briefly raise its head. At this time, due to the fact that the aircraft is raised up, the thrust increases and there is a certain delay, so the speed of the aircraft will not only not increase, but will decrease for a short time.

Just now, in order to stabilize the descent rate, the instructor has brought a lever, although the descent rate has been reduced, but the speed has also become very small, and it is close to the real stall speed.

After that, the throttle wanted to increase the speed and stabilize the descent rate, but I didn't expect to forget to increase the rudder volume when refueling, causing the aircraft to fall into a complicated state again. The complex state again disrupted the steady action of the instructor, so that the plane not only did not increase speed, but began to slow down.

In just one or two seconds, the airspeed entered the real stall zone, and even Xu Qing's side began to sound a jittering warning.

This is not a false warning due to a faulty sensor, but a real stall warning, the plane is stalled!

This is not the most terrible, due to the inconsistent thrust on both sides, the aircraft is in an extremely unstable state of deflection to the right, and if it enters a stall at this time, the aircraft is about to fall into ...... Spiral!

The spiral of the Boeing 737!

The sharp roll and deflection after the aircraft stall will cause the aircraft to enter a spiral, and now the blue sky 9433 is close to the door!

Instructor Chang woke up from a dream at this time, he must not let the plane enter the spiral state, once selected into the spiral, not to mention whether the 737 can change the spiral, the current low altitude alone is not enough to change the spiral.

Just when Instructor Chang wanted to stop the plane from entering the spiral, the light in the cockpit dimmed, and only a series of muffled sounds were heard, and above the windshield, there were broken corpses!