What is the reason for the general delay of aircraft?

The weather is the main reason for the flight delay. The simple word "weather reason" actually contains many situations: the weather conditions at the departure airport are not suitable for take-off; The weather conditions at the destination airport are not suitable for landing; Meteorological conditions of flight routes are not suitable for overflight, etc.

The weather reason not only refers to the weather conditions in the city where the destination airport is located. Aircraft take-off and landing are not afraid of strong winds and heavy rain. The key meteorological factors are visibility, low clouds near the airport take-off and landing passages, and strong crosswinds. It is normal for your flight to be delayed due to the weather.

Second, traffic control.

There are two main reasons why air traffic control affects flights.

1. Flow control: With the rapid development of China's civil aviation, the number of flights has increased sharply, while the corresponding ground facilities, navigation equipment and service support have developed slowly, and the route structure is unreasonable, which can't adapt to the rapid development of the current civil aviation industry. Especially for reasons such as safeguarding national defense security, China has strict restrictions on airspace and many air restricted areas.

2. Air Force activities: This situation involves national defense secrets and often comes suddenly. In short, control and related civil aviation flights will be affected, either waiting on the ground, waiting in the air or returning or landing at other nearby airports. In this case, you can only wait, there is no reason and no estimated time, everything is top secret.

Third, mechanical failure.

Once an aircraft breaks down during the flight mission, the crew should make necessary inspection and judgment according to the maintenance procedures, analyze the fault phenomenon, find the source of the fault, and then carry out corresponding troubleshooting work, such as replacing the faulty parts. After troubleshooting, it is necessary to fill in the relevant maintenance records, and it is also possible to carry out certain testing work to determine whether to repair.

The whole troubleshooting process takes some time. Even some minor faults, there must be a set of strict maintenance and inspection procedures to ensure flight safety.

Fourth, the reasons for passengers

There are many reasons for flight delays, some of which are irresistible natural factors. It is worth noting that some human factors have become "new growth points" that cause flight delays. According to statistics, flight delays caused by passengers account for 3% of abnormal flights, which is almost the same as the number of delays caused by aircraft failures.

Verb (abbreviation for verb) aircraft deployment

Generally speaking, an airplane has to carry out 6 to 10 domestic flights a day, and it takes about 10 hours to fly in the sky. In addition, when the plane is parked on the ground, it usually runs about 16 hours a day, such as picking up passengers, cleaning, loading and unloading goods, routine inspection, etc.

The flight plan of each plane is arranged in advance, and there is not much room for manoeuvre. Any omission of the previous flight may trigger a chain reaction of subsequent flights, which will drag on for a longer time.

Sixth, the flight cuts in line

Airlines claim that they are victims of flight delays, of which only 10% is controllable, and some delays are caused by "cutting in line" by planes.

Extended data:

rule

On October 20 1 0110/01day, China air transport association issued the service and compensation standard for flight carriers with abnormal air transport service quality to Hubei airport group company (for trial implementation). In addition to Spring Airlines, domestic airlines will implement new delay compensation.

It is understood that this regulation applies to information provision, flight service, refund, change of visa and compensation in passenger service of abnormal flights during domestic transportation. Compensation is divided into non-carrier reasons and carrier reasons.

The former refers to weather, emergencies, air traffic control, security inspection, passengers or public safety and other reasons; The latter refers to flight plan, maintenance reasons, flight deployment, transportation services, crew and other reasons.

Delays caused by reasons other than the carrier are not compensated, and accommodation is not included.

If the flight is delayed at the stopover for some reason, the airline shall provide free catering service and accommodation for the stopover passengers as needed, such as alternate flights.

Cash compensation can only be paid if the delay exceeds 4 hours. If the flight is delayed or cancelled due to the carrier's reasons, the airline will bear the cost of returning and changing the ticket.

Airlines should provide free catering services and rest places to passengers according to the delay time. The delayed flight is expected to be within 1-4 hours (including 4 hours), and the passengers will be provided with food and beverage in time.

Free transfer to high-speed rail

The airline has informed passengers of the cancellation of the flight 24 hours before the scheduled departure time of the ticket, and passengers do not need to pay compensation for accepting the flight change or choosing to refund the ticket.

If passengers are provided with other flights or other modes of transportation to reach their final destination within 4 hours after the original estimated arrival time, they will not be compensated if they give up the service. For example, if the flight from Wuhan to Guangzhou is cancelled and the airline arranges the passenger Wuhan-Guangzhou high-speed rail to Guangzhou, there is no need for compensation.

The delay time of the passenger plane is not included in the compensation.

According to the regulations, the flight delay time caused by passengers' refusal to get on and off the plane is not included in the accumulated delay time caused by the carrier.

If the plane is delayed for 4-8 hours (including 8 hours), the airline shall also provide passengers with preferential ticket purchase, mileage or other equivalent compensation worth 300 yuan, or RMB 200 yuan. If the delay exceeds 8 hours, passengers should be provided with discount on air tickets worth 450 yuan, mileage or other equivalent compensation, or 300 yuan RMB.

References:

Flight delay-Baidu Encyclopedia