The clues of the collapse of the DC aircraft indicate that aviation security has failed many times

According to the preliminary internal report of the Federal Aviation Administration, clues to the moment before the deadly collision of the Army helicopter and the US airline aircraft, which showed that the multi -layer failure of the country’s aviation security institutions failed. The current and former air traffic controller and others have made a briefing to this matter.

The helicopter flight is outside its approved flight road. American airline pilots are likely to not see the helicopter driving towards the runway, so they did not see the helicopter. Moreover, air traffic controller who served as two jobs could not keep the helicopter separate from the helicopter from the aircraft.

A Federal Aviation Agency spokesman said the agency could not comment on the underway investigation, which was led by the National Transport Safety Commission. The collapse investigators will review flight data in the next few months, recording inside the cockpit, weather mode and interview controller and other people involved.

However, this disaster seems to have confirmed the pilot, air traffic controller and safety experts have been warning for many years: vulnerabilities in the aviation system may lead to a crash accident, causing 67 people to die in the Potoma River in Washington.

Even before determining the official reasons, there were signs on Wednesday that the Lagan National Airlines and air traffic controller did not run under the best conditions.

Before the fatal crash, the responsibilities of the air traffic control and the Reagan national aircraft were merged to the helicopter. According to a briefing staff and report, this makes air traffic controller handle dual roles.

Generally, when the traffic of Reagan began to decrease, a person handles the helicopter and aircraft responsibilities after 9:30 pm. However, according to the person, the supervisor merged these responsibilities together at a certain time before 9:30, and allowed an air traffic controller to leave. The person was not authorized to openly discuss the investigation of the crash. The crash occurs before 9 pm

The FAA preliminary report said that although there were no abnormal factors caused the controller to be distracted, the personnel of the personnel were “abnormal time and traffic in the day.”

On Thursday, five current and predecessors said that the controller in the tower It should be more actively guiding the helicopter and the aircraft to fly away. Instead, the controller requires the helicopter to remove the aircraft.

Some current and predecessors have said that darkness may make it difficult for pilots to accurately evaluate the distance between themselves and other planes. Some people want to know whether helicopter pilots mistakenly think they are different aircraft of American jets.

This helicopter should have been close to the river bank of the Potoma River, and low to the ground when crossing the busy Reagan nation, and four people made a briefing to the incident.

Before the helicopter enters any busy business airspace, it must be approved by the air traffic controller. In this case, the pilot requires allowing the use of a specific scheduled route. The route allows the helicopter to fly along the low altitude of the river bank on the east side of the Poto Mark. The location can avoid using US airline aircraft.

The required route-called Highway 4 in Reagan National-Following the specific path known to the air traffic controller and helicopter pilot. The helicopter confirmed the sight of the regional jet aircraft. The air traffic controller instructed the helicopter to fly along the route and fly behind the aircraft.

People’s briefing on this matter said that helicopters did not follow the expected route.

Instead, it is above 300 feet. At that time, it should fly below 200 feet and collide with commercial jet aircraft. It was at least half miles from the approval route.

A senior officer urged any evaluation until the black box of the helicopter recovered and analyzed with other forensic data.

The official delivered a speech under anonymous because of continuous inquiries. He said that the Black Eagle pilot had had this route before, and knew that the altitude restricted and close air corridors were allowed to fly near the airport.

Aviation’s safety mistakes have been increasing for many years, which has led to a shocking model of close calls involving commercial airport airports. They occurred in the country’s busiest airport, including the congestion of Reagan National, where the military flights frequently made control of control.

At the same time, long -term lack of air traffic controller forced many people to work for six weeks and 10 hours. This is a very fatigue timetable, so that multiple federal institutions warn that it may hinder the controller to complete the work correctly to complete the work correctly. ability. According to the Times in 2023, few facilities have obtained sufficient comprehensive authentication air traffic controller. Some controller said that it has almost improved since then.

Reagan’s air traffic control tower has less than many years. According to the latest air traffic controller’s labor plan, as of September 2023, as of September 2023, the tower was lower than the target employee level, including 19 comprehensive certified controllers. Objectives and actual personnel are equipped. The target and controller union set by the FAA requires 30.

A Federal Aviation Administration spokesman said on Thursday that the Reagan State currently hires 25 certified controller among 28 targets.

On Wednesday evening, the controller of the helicopter at the airport also instructed the plane to land and set off from the runway. The FAA internal report said that these tasks are usually allocated to two controllers instead of one. This increases the workload of air traffic controllers and makes the work complicated.

The controller can also use different radio frequencies to communicate with pilots and pilots flying helicopters. Although the controller is communicating with the pilot with helicopter and jets, the two groups of pilots may not be able to hear each other.

According to the FAA report, when the pilot of the plane was close to the airport, air traffic control was required to land from one runway to another runway. This is a report of the FAA report. A person briefly introduces the incident and the air traffic controller and the dialogue. Recording pilot. The request may introduce another complication shortly before the collision.

The flight of the United States was originally cleared by the traffic control tower, and it was descended to the airport’s main runway, called Runway 1. Essence

According to the briefing of the incident and the other four other people who are familiar with airports, the decision usually occurs from aircraft involving US airline aircraft. It is said that this decision can also help keep air traffic driving effectively by not blocking the main runway.

The runway 33 is short, and the strong attention of the pilot landing on the plane. The change in the last minute triggered the issue of the US International Airlines (FAA) on Thursday morning on the reagan national congestion on Thursday morning. The briefing of the event was added.

US CEO Robert Isom said at a press conference on Thursday that the pilot of passenger planes in the collision accident worked at the US subsidiary PSA Airlines for several years. The captain has been hired by the airline For more than six years, an official has worked there for nearly two years.

He said: “These are experienced pilots.”

Nicholas bogel-burroughs Contribution report.