Chapter 4 — Light Streaks Off The Runway

Vo Tan Duy does not like the word "float". In the tower room, he used that word once and then crossed it out in the notebook.

The edge of the runway does not float. It's a fixed line, with coordinates, painted, and people have to read it in a few seconds. If we say light flows, the listener may think it is a feeling. If you say “the west edge light creates an image that is off the true edge when viewed through the tower glass in reduced visibility”, the statement is longer, but someone else knows what to check.

Duy rewrote the sentence, then heard Tong's voice from the internal speaker. “Tower, do we need to limit light testing today?”

“Ky thuat dang kiem tra mach W-3.”

“Does it affect the training schedule?”

“Undetermined.”

“I need a more understandable sentence.”

Duy looked at the ground radar screen, where everything was quiet. “There is no data yet to determine whether there is an effect.”

The speaker is silent for a few seconds. "Okay. Noted."

Duy turned off the channel and leaned back in his chair. The person sitting next to him was a new duty officer, learning to distinguish between phrases used in normal and abnormal situations. The girl asked: "Mr. Tong, do you want me to say whether the airport is safe or not?"

“He wanted to know if he could continue the schedule or not.”

“Is that the same question?”

"Are not."

Duy returned to the screen. “That's why it's important to be precise.”

The night before, Duy saw the light expanding. I don't know why I noticed it. Maybe because after many years, his eyes got used to repeated distances. Maybe because one time before, a pilot asked why the western edge lights weren't aligned with the painted edge. Duy then replied that the system was checking, then the flight circled due to low clouds. No one was injured. The final report states “no confirmed abnormalities”.

He remembered the silence that followed that answer. Not the radio. It's the space in my head when I know something hasn't been explained but has been put into a closed compartment.

Nghi called the tower at ten o'clock. Co khong noi vong.

“Can you send me the log of the times the pilot or staff reported the western lights?”

"It's possible. But you have to ask Tong."

“Please help me.”

“I need to know the purpose.”

“Compare observations.”

“Keyword?”

“Edge lights, edge of the field, misaligned, reflective, runway unclear.”

Duy opened the reporting system. The first keyword produced four copies in two years. Hai ban chi noi den yeu. One version says light reflects on the road surface after rain. The last version, fourteen months ago, read: "On entering the shaft, the west light felt unbalanced; went around at pilot's discretion."

Duy read it again. The person reporting was a captain of another airline. The status is marked “monitored”.

“Doubt,” he called.

“I heard.”

“There is an old report that uses the word ‘unbalanced’. Can I send a copy?”

“Send information for processing afterward.”

“If not?”

“It says no.”

Duy typed. The processing that follows has just one line: “Visually inspected, system works.”

His throat felt dry. “There is no geometrical measurement.”

“Anh noi to hon mot chut.”

“There is no geometrical measurement.”

"Thank."

Nghi did not ask why he had never sent this report. Duy knew she would ask later, when there were papers on the table. He sent the data, then walked out the glass tower door. The runway is under the midday, pale morning sky. The light is off. There's nothing to see.

In the afternoon, Tong held a meeting of three people: he, Nghi and Duy. Tong placed the old report next to the route opening schedule.

"I don't want to using a comment made by a pilot fourteen months ago as current evidence,” he said.

“That's the reason to check,” Nghi replied.

“I would like to keep the sentence ‘visually inspected’ in the summary.”

Duy looked up. “That sentence doesn't say what was checked.”

Tong looked at him. “I don't need you to teach me how to write a report.”

“I don't teach. I say the limit of the sentence.”

Nghi opened the book. “Please write down the pilot's report verbatim, the subsequent inspection method and the unchecked part. Do not change ‘unbalanced’ to ‘reflective’ without data.”

Tong put his hands on the table. “You two want me to send the province a report saying the airport has an unspecified problem, just as they are promoting the new route?”

“Yes,” Nghi said.

“What if the province cancels the advertising budget?”

“Then I know what's more important.”

Tong laughed, but not happily. “You talk as if promotional money is something that is easy to give up.”

Duy interrupted: “No one said it's easy to give up. But people on the plane cannot see the cost sheet.”

The room was silent. Tong looked at Duy longer. “Have you ever encountered this situation?”

Duy did not deny it. He briefly told about the flight that had to be detoured fourteen months ago. At that time, he reported in the standard sentence, the pilot made his own decision. No one blamed him, but he knew the post-flight report made matters smaller. It protects the system from question, not the runway approacher from ambiguity.

Tong opened the drawer and took out an old set of minutes. “So what do you guys want me to do?”

Nghi said: “Let's test the simulation with a high viewing angle, test under switching conditions and suspend the ready conclusion until the data is available.”

"How long?"

“Two days.”

“I have forty-eight hours before the performance.”

“Let's start now.”

Tong looked at the clock. “Cost of observation equipment?”

“Han is asking the company for support.”

“I don't like depending on the company.”

“Neither do I. But it does not mean denying data just because the provider has an interest.”

Cong signed the inspection request, but the pen stroke was strong. “What if the results show no errors?”

“I sign to confirm that there are no errors within the scope checked.”

"If any?"

“I signed the request for correction.”

Duy looked at Nghi. She did not say “close the airport”. It's not time yet. She only made sure that the words that would lead to the decision were not softened.

That night, Duy was on duty one more shift. In the corner of the old log, he saw a line handwritten by the person on duty last year: "The western light looks like it expanded after the transmitter transferred, but has not repeated."

There are no trouble codes. No signature.

Duy took a photo of the page and sent it to Nghi. A minute later, she replied: “Keep it original. Don't withdraw the page.”

Duy looked at the row of lights going out outside the window. For the first time in months, he didn't feel like he was trying to prove his old feelings were right. I just want to know how many people have seen the same thing but don't know where to put it.

After the shift, Duy brought the old record down to the technical room instead of sending it through the system. I want to see how Nghi saves documents. She puts the original in a moisture-proof cover, the working copy in a folder with access, and then writes the version code on the label.

“You don't need to do that,” Nghi said.

“I want to know it doesn't disappear after sending.”

“Then you write down the receipt.”

Duy signed the delivery book. He wasn't used to a report needing confirmation from the recipient, but he understood that after eight years, no one could point to an email and say they had discussed it. deliver.

Uyen asked Duy: "Why did you say the pilot made his own decision but still kept the report?"

"Because the operator cannot turn observations into orders. But he also cannot delete observations just because he did not decide."

“If you don't know how to evaluate?”

“Say I don't know.”

Nghi looked at Duy. “Have you ever been blamed for that sentence?”

Duy smiled tiredly. "Yes. People think the tower builder must have an answer right away. But there are times when the correct answer is 'not enough information to confirm'. The problem is, after saying that, what to do next."

They opened the old flight report. An addendum states that the plane circled for an additional twelve minutes, fuel was within limits, and passengers were not informed of the reason. Nghi asked Han if the company received any feedback afterward. Han said the airline only receives weather codes and pilot decisions.

“No ground engineering code?” Nghi asked.

"Are not."

Duy recorded the information gap in the table.

Tong walked in and listened to the last part. “You are expanding the problem from the lights to the reporting process.”

“Reporting is how the problem goes across cases,” Duy replied.

Tong looked at him. “I don't want to turn Vam Chan into a place where people are afraid to sign.”

“The goal is to let people know what they are signing,” Nghi said.

Tung took a pen and wrote on the form: "The signer must write down the scope of observation, do not sign for unchecked parts." He pushed the model towards Duy.

“Do you think this sentence can be used?”

Duy read. “Yes. But more recipients are needed.”

Add one more line.

In the afternoon, Duy went up to the tower with the new employee. He played her three recordings: one normal signal, one noise, one vague message. She guessed the third version was noise.

Duy said: "No conclusion."

“So what do you write?”

“Unknown sound, time, channel, condition.”

“If someone asks me if I have influence?”

"You said you're not sure yet, let's transfer the person in charge."

Nghi listened on the phone. She did not participate in the lesson, but recorded that part in the training report. A safe airport requires more than just good people; need new people who are not taught the habit of guessing.

At night, Nghi and Uyen stood at the western observation post. The test light turns on at each level. Duy asked from the tower what he saw. Uyen replied: "At a low level, the 17D and 17E lights create a visual gap when standing under the camera; from the apron, the gap is smaller."

Duy repeated to confirm. Do not speak for yourself.

A warehouse employee walked by and looked at the row of lights. “I feel normal.”

Uyen turned around. “Where do you stand?”

"Here."

“Record the location for us.”

The other person was surprised, but held the pen. He wrote down his name and location. Before leaving, he said: “I don't understand the technicalities, but I often see the bright end when it's wet.”

Nghi asked: "Have you ever reported?"

“I told the person on duty.”

"It's okay. You can write now."

He left. Uyen added a new line.

“Everyone sees a part,” she said.

“And if there is no place to join, the parts disappear.”

Duy sent another record. This time it was the voice of a pilot saying “the outer edge is unstable” in the rain. No one knows if that person officially recorded it or not. Duy has asked for permission to save the audio version, but has not yet reached a conclusion.

Nghi asked: "Are you afraid that people will think you are gathering blame against someone?"

"Have."

“You still collect?”

“I am gathering signs, not sins.”

Nghi nodded.

At 11 p.m., the light circuit turned off. Duy returned to the tower. Doubt to close the book. Uyen sealed the record. No sirens, no planes, There isn't a dramatic moment for outsiders to remember.

There's just a group of people who are learning not to call a vague sentence nothing.