Chapter 116: Exchanging Height for Speed Exchanging Speed for Life
"Do the "Engine Failure or Shutdown" checklist first!" Xu Qing's cold gaze was like the cold winter snow that made Wang Wanya, who was stunned, shiver.
is also wrapped in endless fear and helplessness, Wang Duanya's reason was ruthlessly destroyed, and Xu Qing was willing to fight in the dead realm.
The checklist of "Engine Air Start" cannot be done directly, and other checklists need to be transferred to the "Engine Air Start" checklist, so Xu Qing asked Wang Qianya to do the inspection of "Engine Failure or Shutdown" first, and this checklist will finally be transferred to the "Engine Air Start" checklist!
"Also...... Can you still start again, the vibration value of the engine just now is so high, isn't it possible to try to start again without abnormal body vibration? Wang Jianya's sanity finally recovered slightly, and he began to think seriously about Xu Qing's words.
Xu Qing's hand holding Wang Qianya's collar tightened a little, and his tone was also a little colder: "If you want to manipulate the landing with the twin engines turned off, you are free, I can't do it!" ”
No, not only Xu Qing can't do it, but no pilot in the world can land 100% safely with his chest patted on his chest and with his twin engines turned off. There is only one life, and Xu Qing can't gamble with his life on whether he can create miracles. As long as there is one shot, as long as there is still one shot, Xu Qing is seventy percent sure!
Wang Jianya had never seen Xu Qing's hideous face, and all the mountain-like pressure that would cost him his life if he failed was carried by Xu Qing, a rookie pilot. He didn't know how long Xu Qing could hold on, but at the moment when he handed over the control to Xu Qing just now, he had already decided to trust him unconditionally, and besides, he had no choice.
Wang Jianya covered his chest with his left hand, and wanted to force his heart to almost jump out of his chest, but his right hand, which was still a little disobedient, began to turn over the electronic QRH!
Xu Qing was not idle here, on the CDU's cruising page, he called up the ENGOUT page, referring to the landing speed provided therein, and adjusted his speed to 265.
If the air start is not successful for a while, they can only give up the plan to divert to W City, and choose the nearest airport that Wang Jianya pointed out just now that is less than dozens of nautical miles away from Xu Qing and them.
"Blue 9441, now the second engine is also invalid, we are trying to restart, we may not be able to maintain the height of 6900 for a while." Xu Qing reported his situation to the control.
Xu Qing has no momentum, and it is very likely to break through 6900 during the period of restarting. Xu Qing is worried that there will be an impact below, and it is necessary to communicate with the control in advance.
The heart of the control today is not as scared as 9441, this special situation is wave after wave, and it does not give people a chance to breathe at all!
"Blue 9441, all the planes near you have been transferred, there is no impact, you can deal with the fault by yourself! How else can we help? ”
Xu Qing sorted out his emotions and said in a deep voice: "What if....... If the start is not successful for a while, we will not be able to fly to W City, then we will make an alternate landing to GZ City directly ahead, you can help me contact them and prepare to receive them. ”
Xu Qing's lips were trembling when he said this, and he didn't dare to imagine what the consequences of an unsuccessful start would be!
The fear revealed in Xu Qing's voice could be clearly heard on the control side, but there was nothing he could do, all he could do was arrange everything for 9441, so that the crew could focus on dealing with the special situation.
"9441, I will help convey your request, if you have any questions now, you can ask me, and I will try my best to help you coordinate!"
"For the time being, no need!" Xu Qing wiped his eyes tiredly, his hands were already wet, and he didn't know if it was sweat or tears!
At this time, Wang Jianya also began to do the "Engine Failure or Shutdown" checklist!
Autothrottle, disconnect!
Thrust handle, two shots, light!
Xu Qing did it one by one according to what Wang Jianya read, and there should be nothing else on this checklist, the main thing is to start the APU and let the APU assist in power supply.
When the fire alarm was fired just now, Xu Qing had already turned on the APU, and after the second fire went out, Xu Qing had already connected the right side of the APU, and the main thing for Xu Qing now was to wait for this checklist to be completed, and to do the checklist of "Engine Air Start"!
Engine starting handle, second shot, confirmed, cut off!
The component gate, the affected side, which is the right component, is turned off!
This action should be done by Wang Jianya, but when Wang Jianya read out the word component, Xu Qinglao felt as if he had mentioned it there before.
"Right component, verify, shut down!" According to the rules, Wang Jianya confirmed again that he wanted to close the right component, and after confirming that it was correct, he was ready to close the component!
"Wait a minute!"
Xu Qingyi grabbed Wang Qianya's hand, and his gaze moved away from the right component electric door and turned to the left component electric door on the other side.
His pupils contracted suddenly, and the component gate on the left side was also closed!
Xu Qing then remembered that when he did the "Engine Fire Alarm, Serious Damage or Separation" checklist before, he had already closed the electric door of the left component, and if the right component was turned off again, wouldn't they have no supercharging!
Xu Qing let out a sigh of relief, it's okay, it's okay, the right component was not closed, and it was stopped in time.
However, he suddenly thought about it, no! Now although the right component is not turned off, but the twin engine failure has no engine bleed air at all, what is the difference between this component being open and closed, isn't it just a decoration.
His mind buzzed, and his gaze shifted to the engine bleed air lights below, which were emitting an amber glow, indicating that there was no bleed air now.
Moving down the cabin altimeter again, the cabin altitude has reached more than 8,000 feet at this time, and then looking at the cabin altitude lift gauge below, the cabin altitude is rising at a speed of more than 600!
The aircraft itself is not completely sealed, and there will be some air holes connected to the outside world to control the pressure in the cabin. Because it is not a large hole such as a broken fuselage, there is no sudden release of pressure, but a slow release of pressure through the air hole. But as things stand, it's only a matter of time before pressure is relieved.
The most important thing is that Xu Qing's current height is much higher than the foot, and the APU cannot provide bleed air, otherwise there is no need to worry about pressurization when using the APU for air supply.
Now the APU is already supplying power, and when in the air, the limit altitude of the APU for both power supply and gas supply is feet, and Xu Qing does not meet the height requirements at all now.
"!"
Xu Qing hurriedly contacted the control: "Blue 9441, the cabin is about to be depressurized, and I request to descend to an altitude of 3000!" ”
The control side probably didn't understand why it was only a second failure just now, and now there is a need to release pressure. But no matter what, he still replied: "You can drop to the height of 3000, and the local sea pressure can be corrected to 1020!" ”
Because 3,000 meters was already below the local transition altitude layer, the control directly told Xu Qing about the correction of sea pressure. It's also a shame that there are plains below, otherwise it would not have been possible to descend to this low height.
Xu Qing directly adjusted the height of 9,800 feet on the MCP board, and was about to press the height layer to change and prepare to descend, but was stopped by Wang Qianya on the spot.
When Xu Qing reported on the control just now, he already understood what was going on, the two amber bleed air lamps were still lit there, and he also knew that the APU bleed air could not be counted on now, and the plane was about to release the pressure Xu Qing was not wrong.
But, even so, he did not agree with the current decline.
If the pressure is relieved, the pressure will be relieved, and the passenger can wear an oxygen mask, won't it last for 15 minutes?
Is the knife on their necks now depressurized, and as soon as the plane is depressurized, they will crash? No!
The engine, the engine is the priority, and restarting the engine is the priority they should have!
And if the start is not successful, the landing is the most difficult problem that follows!
What is the most important thing about a double drop?
Height!
With the altitude, they have the basis for all maneuvering, and with the altitude, it is possible for them to glide to the airfield in front.
He couldn't imagine finding a random piece of open land to ground, that would be tantamount to suicide!
Now, height is life, their hope to live, and he can't accept a rash decline for the sake of a relatively minor stress relief problem, losing precious height.
At the very least, 15 minutes, if not 10 minutes, is more than enough time to restart the engine. If the start is not successful, the remaining 5 minutes are enough to get below the feet.
At that time, it was not a question of whether they wanted to descend or not, without oxygen masks, in a high-altitude environment, passengers may not be able to support the landing and die due to lack of oxygen!
"Wait a little longer, the oxygen can last for 15 minutes, let's start in the air first, the altitude can't go down, and we won't have a way to retreat!" Wang Qianya stared at Xu Qing with blazing eyes.
This is the first time he has formally and firmly questioned Xu Qing's decision!
At the moment of life and death, Wang Jianya has not lost his thinking, he has gradually picked up the responsibility of being a pilot!
Frankly speaking, Wang Jianya's dedication to a high degree is not wrong, and for a double-engine flame-out plane, no one knows whether it can start. Especially when the ignition was turned off before, the high vibration value of the second engine gave Wang Wanya reason to believe that the second engine was likely to have received a certain degree of damage at this time, and he actually didn't have much hope for the air start, so he cherished the current height.
However, Xu Qing thought more than him!
"Do you know how to start it in a moment?" Xu Qing did not stubbornly carry out an emergency descent action, but calmly said to Wang Qianya.
Wang Wanya frowned: "What do you mean?" ”
Xu Qing's right hand on the steering wheel became more and more forceful, and his eyes were full of unstoppable determination!
"We don't have an air source, we can't do alternating air induction start, we do wind rotation start! At the high speed of the emergency descent, to meet the speed requirements of the wind turn, we have no choice! ”