The tower controller didn't know what the initial climb rate of the 737 could be, but he was sure that it was casually over a thousand feet per minute, and it was impossible to maintain a minimum climb of less than five hundred feet per minute.

Rate.

What is the biggest requirement for takeoff? Obstacle clearance! How can anyone maintain an ascent rate of less than 500 feet per minute to clear obstacles?

The tower controller held his breath for a moment and found that Feiyu 6321's ascent rate still showed no sign of increasing. He stood up suddenly and visually observed Feiyu 6321's aircraft.

It can only be said that the climb of Feiyu 6321 is indeed too slow. Ordinary aircraft would have disappeared by this time, but Feiyu 6321 is still within the field of vision. Moreover, from a visual point of view, in addition to climbing unusually slow,

There don't seem to be any other problems.

He looked at the radar screen again and found that Feiyu 6321 had indeed not hung the emergency code yet, and there was no announcement of MAYDAY or PANPAN on the radio.

The tower controller suddenly stood up and startled his colleagues. The colleagues asked strangely: "What's wrong? I was so surprised."

The tower controller's eyes were switching back and forth between the radar screen and the fuselage of Feiyu 6321 in the sky. He did not look at his colleagues, but responded casually: "Don't talk, I'm busy with something."

The colleague turned his head and glanced at the radar screen: "You're going to rest after sending this plane away, why don't you change the frequency?"

"I don't know if it can be changed." The tower controller's face became more and more gloomy. So far, Feiyu 6321 has not returned to the normal ascent rate. Logically speaking, he should hand over the control relationship to the approach control anyway.

It was time for dinner. But he didn't do that. Instead, he seemed to be waiting for something.

In the cockpit, the altitude of 400 feet that could have been achieved in one go took less than a minute. During this period, the N1 speed had dropped below the idle thrust, leaving only the N1 generated by the wind change, and the N2 display also showed

ENG FAIL instruction.

Since the captain had already corrected the plane's sideslip while on the ground, the plane was able to remain on the extended runway after leaving the ground.

As soon as the plane passed an altitude of 400 feet, the captain immediately asked: "Diagnose the fault!"

The co-pilot had already made a mental decision. As soon as the captain asked the question, he immediately answered: "It's just a simple engine failure, there is no memory item."

The captain controls the aircraft with one hand. It is said that the control should be handed over to the co-pilot at this time, and then he can concentrate on identifying the fault. At least this is the case in simulator training, and most co-pilots can also control the aircraft well in the simulator.

.

Now, the plane has passed the most dangerous initial climb stage. Logically speaking, it would be okay to hand it over to the co-pilot. But in actual circumstances, the captain really did not dare to hand the plane over to the co-pilot.

Fortunately, the plane had stabilized by now, and it wasn't particularly difficult to spare some energy.

N1 has speed, N2 has no speed, the EGT index returns to zero, the ENG FAIL indication appears, and although the fuel flow, oil pressure, oil volume, etc. below have all returned to zero, they are still displayed.

The expression of this data is relatively clear, it is simply the engine stalling. It is not flying off, nor is it seriously damaged! Then there is indeed no memory item.

"Well, it's confirmed that it's an engine failure." The captain regained his energy and was about to give follow-up instructions to the co-pilot. As if he thought of something, he tilted his head back slightly: "Brother, do you think it's an engine failure?

"

Xu Cang didn't expect that the captain would ask for his opinion. He was stunned for a moment, but he quickly answered: "I think so."

"Okay!" The captain no longer hesitated and ordered: "Report PANPAN and apply to stay aside to deal with special circumstances."

The first officer had no special reaction to the captain's questioning of Xu Cang. Instead, after receiving the captain's instructions, he immediately contacted the tower: "PANPAN, PANPAN, PANPAN, Feiyu 6321, the No. 2 engine has failed, please apply for maintenance

On one side, deal with the fault."

PANPAN and MAYDAY are both announced when an aircraft is in distress, but they are slightly different. If roughly distinguished, it can be simply understood that the situation of announcing PANPAN is slightly less urgent than the situation of MAYDAY. For example,

If it is not a simple engine failure but an engine fire, then it is not a PANPAN but a MAYDAY. At any time, an aircraft fire is an extremely important matter and cannot be delayed for a moment.

The controller who had been standing in the tower control room had already felt it in his heart. He was waiting for this moment. Almost without any pause, he immediately replied: "Feiyu 6321, you can stay on one side and report the turn."

"Keep aside and report the turn!" the co-pilot replied quickly, as he had to be busy with other things later.

At this time, in the tower control room, the controller was really at a loss. This was the first time he encountered an engine stalling. However, this guy was still calm and did not disturb the crew in a panic. He knew that this time

The most important thing is, if there is anything else, we can wait and ask.

After pondering for a moment, the controller immediately contacted the approach control seat to explain the situation, because according to the handover regulations, he should now hand over Feiyu 6321 to the approach control seat. However, the controller guessed that there was a high probability that the flight would return to land, and

Wouldn't it be a disservice to the crew to distract themselves from communications at this time? It would be better to communicate with the nearest person in advance.

This matter is not complicated. The problem is that now that Feiyu 6321 has announced PANPAN, the airport may also enter a state of emergency. In this way, the control of all nodes from the apron, ground, tower, approach to area will be reduced.

He had to be affected. This was the first time that he, a small supervisor who had just become a full-time official, felt that he was so important.

Taking a deep breath, the controller patted his colleague and said, "Keep an eye on it for me. There are no planes in the field right now. Just try to meet the crew's requirements."

Colleagues do not object to taking temporary relief. As the controller said, there are no other aircraft over the field, so it is very easy to deploy.

"What are you going to do?"

Upon questioning, the controller had already slipped to the door of the control room and waved to his colleagues: "I'm going to find the director."

In the cockpit, the captain saw that the plane was stable and scratched the tip of his nose habitually: "Turn out the checklist."

"Already found, do you want to do it now?" The co-pilot has already turned over the "Engine Failure or Shutdown" checklist and spread it on his legs, ready to carry out abnormal inspection work at any time.

"No rush!" The captain waved his hand: "We'll talk after the flaps are retracted."

Xu Cang, who was sitting in the back, raised his eyebrows, looking quite surprised. He couldn't help but admire in his heart: "This captain is really calm."
Chapter completed!