When Xu Qing entered the house, the whole group of people was waiting at the security checkpoint, and as soon as Xu Qing came in, more than a dozen eyes fell on Xu Qing.

"The shelf is quite big, and the whole group is waiting for you!"

Instructor Chang was at the front of the team, and when he saw Xu Qing coming in, he teased him.

Xu Qing was quite embarrassed, he forgot that the task book was on himself, so he quickly quickened his pace and handed the task book to the security personnel.

Xu Qing deliberately lagged behind, and he needed to explain the task book to the security personnel.

Usually, the order of security check is flight, flight attendant, safety officer, and finally the safety officer collects the task book and returns it to the co-pilot.

Xu Qing didn't worry about the security officer, he had to talk to the security officer in person.

Instructor Chang was the first to pass through the security check, and when the flight box passed through the security machine, he found that Xu Qing ran to the back of the line.

The old fox of the regular instructor saw Xu Qing's intentions at a glance, and he didn't break it, shook his head and smiled bitterly that he had gone first.

Xu Qing explained to the security personnel that someone would come over after a while, and then he was relieved to pass the security check.

As soon as Xu Qing got into the car, Teacher Chang just wanted to talk to him, but Xu Qing raised his hand to stop him, and the words that just came to his mouth were held back.

"Unit 9271, one of our crew members dropped something, the car that sent us into the field just now will go directly to the attendance building to pick up something and then send her back to the crossing, here to report to you." Xu Qing called the team to dispatch the situation.

"Yes, yes! The captain knew, and he agreed. Xu Qing didn't ask the opinion of the regular teacher at all, and directly made a decision for the regular teacher.

"Okay, thanks, one more thing, the infield car will call me again, yes! We're going to get on the plane first. Okay, thanks! ”

Xu Qingwan happened to meet the indifferent eyes of Teacher Chang.

"I think you need to respect me, and next time you talk to me, I won't disagree." Instructor Chang said seriously, he felt that his captain's authority was ignored by Xu Qing, and it was necessary to remind him.

Xu Qing just let out a faint sigh, then stopped speaking, leaned back on the chair and closed his eyes to recuperate.

Teacher Chang was so angry that his scalp was numb, but he was helpless against Xu Qing, and he didn't pursue it too much.

……

This time the parking space is arranged more partially, but fortunately, there is a bridge, and it is not troublesome to pick up passengers later.

By the time Xu Qing got under the plane, it had already begun to rain drippingly, and it was strangely cold on his body.

Xu Qing flew with Teacher Chang, so there would definitely be nothing wrong. Instructor Chang asked Xu Qing to go up to prepare first, and he and the deputy were in charge of checking around the machine.

The regular instructor is a more responsible old instructor, and the inspection is generally done in person, and many old instructors are asked to do the inspection by the machine, and sometimes they don't do it.

As soon as Xu Qing entered the plane, he felt a gusty wind and a cold body.

"Is the ground air conditioner so cold?"

Xu Qing is about to crack, the APU of this plane is useless, he can only rely on ground air conditioning, and he is not good at adjusting the temperature with ground air conditioning, and as a result, this plane is as cold as an ice cellar, who can stand this.

However, this plane has not flown in recent years, and it is relatively old, and it has some peculiar smells, so it must be turned on for air conditioning.

Xu Qing shuddered and entered the cockpit and began to prepare for the cockpit.

This plane is so old, some of the CDU's keys are almost worn out, and some of the keys are still in poor contact, and they need to be pressed several times before they react, and there is too much trouble when entering CDU data.

For the purpose of saving, even if the APU can still supply power, the power supply is still selected, and the APU is directly turned off.

The crew came over at every turn to ask when it would be warmer, and Xu Qing had no choice but to wait for the engine to start and use the engine bleed air before calibrating

Another negative effect of the failure of the APU bleed air to start when the engine starts is that it cannot start normally.

You must know that there are two elements required for engine starting, one is power supply and the other is charge air. The APU can also provide power, but the charge air cannot be supplied if bleed air is not available. During normal starting, the APU provides pressurized air. Therefore, during the starting process, the APU bleed air gate is to be opened, and when the engine starts well, the engine bleed air can be provided, and then the APU bleed air valve can be closed and the APU can be closed.

Now that the APU bleed air is not available, then the charge air can only be supplied externally, that is, by the ground air source vehicle.

If this time the entire APU is not available, then a ground power supply vehicle is also needed.

Ground power supply vehicles and ground air source vehicles are not equipped with every airport, and many airports in third- and fourth-tier cities do not have ground power vehicles and ground air source vehicles, so for aircraft with problems with APU, they cannot be arranged to the airport, even if they want an airport, they must know in advance whether there is a ground power supply vehicle and a ground air source vehicle. Otherwise, if it lands, it will be embarrassing if the engine can't start.

As a large airport in the forefront of domestic traffic, the configuration of K city airport is naturally complete, and the level of C city airport is similar to that of K city, but there is no problem of ground power supply vehicles and ground air source vehicles.

This time, unlike the 2.19 event, you can't use wind rotation starting, you can only use alternating induced air starting.

That is, the ground air source car starts one engine first, and then uses the starting engine to provide charge air to start the other one.

Xu Qing hadn't done alternating infusion air starting, and after making preparations, he flipped out the electronic manual and read the program.

Instructor Chang came up after a circle below, he didn't care about anything, let Xu Qing do everything, and Xu Qing was also happy.

Because there is a covered bridge, it is very convenient to get on the passengers, this time there are more passengers, and it takes almost half an hour to finish, which is relatively rare for the situation of having a covered bridge.

Qin Heluo came back before boarding the passengers, and specially came to the cockpit to say hello.

After the passengers got on board, the manifest had been received, and Xu Qing was calculating the take-off speed. At this time, the purser came in and reported that the passengers were all together, and whether the door could be closed.

The instructor nodded and instructed the purser to close the door.

At this time, Xu Qing's brows were furrowed, he picked up the manifest again, looked at it, recalculated, and after confirming that he had not made a calculation error, he was just about to talk to the instructor, and out of the corner of his eye, he found that the purser had just come out of the cockpit door.

"Closing the door?" Xu Qing asked the one sitting in the observer position.

"Yes, all the passengers!" A pair of answers.

"it!"

Xu Qing hurriedly pressed the call bell to call the purser, but for some reason, the purser did not respond.

"What's wrong?" Teacher Chang noticed Xu Qing's strangeness and said with concern.

"There's a stowage problem!" Xu Qing only said a word, left his seat, turned around, put one hand on the observer's seat, pushed open the cockpit door with the other, and shouted outside: "Don't close the door!" ”