DID (Deregistration Identifier)

Introduction:

Deregistration Identifier (DID) is a unique identifier that is assigned to an aircraft when it is removed from the registry of a state. DID is an essential tool for tracking the history of an aircraft, including its ownership, maintenance, and operational records. DID is issued by the International Civil Aviation Organization (ICAO) and is used to identify an aircraft that has been deregistered by a state. In this article, we will explore the concept of DID, its purpose, and how it is assigned.

What is Deregistration Identifier (DID)?

A Deregistration Identifier (DID) is a unique combination of letters and numbers that is assigned to an aircraft when it is removed from the registry of a state. This identifier is used to track the aircraft's ownership, maintenance, and operational records. The DID is issued by the International Civil Aviation Organization (ICAO) and is used to identify an aircraft that has been deregistered by a state.

Why is Deregistration Identifier (DID) important?

Deregistration Identifier (DID) is important for several reasons. First, it provides a means to track the history of an aircraft. When an aircraft is deregistered, its registration number is no longer valid, making it difficult to track the aircraft's history. The DID provides a unique identifier that can be used to track the aircraft's ownership, maintenance, and operational records.

Second, the DID is important for safety reasons. Aircraft that are deregistered may be sold to other countries or organizations. The DID ensures that the new owner is aware of the aircraft's history, including any maintenance or operational issues that may affect its safety.

Third, the DID is important for legal reasons. Aircraft that are deregistered may be subject to legal proceedings, such as bankruptcy or foreclosure. The DID provides a means to identify the aircraft and its history, which may be important in legal proceedings.

How is Deregistration Identifier (DID) assigned?

Deregistration Identifier (DID) is assigned by the International Civil Aviation Organization (ICAO). The ICAO is a specialized agency of the United Nations that is responsible for establishing and promoting standards and procedures for international air navigation. The ICAO assigns DIDs to aircraft that are deregistered by a state.

When an aircraft is deregistered, the state of registry notifies the ICAO. The ICAO then assigns a unique DID to the aircraft. The DID is composed of a four-letter code that identifies the state of registry and a four-digit number that is assigned by the ICAO. For example, if an aircraft is deregistered by the United States, the DID may be USXX0001.

The four-letter code that identifies the state of registry is based on the ISO 3166-1 alpha-2 country code. The four-digit number that is assigned by the ICAO is unique to each aircraft that is deregistered. The ICAO maintains a database of all DIDs that have been assigned, which can be accessed by authorized users.

Conclusion:

Deregistration Identifier (DID) is a unique identifier that is assigned to an aircraft when it is removed from the registry of a state. DID is important for tracking the history of an aircraft, ensuring safety, and legal reasons. The DID is assigned by the International Civil Aviation Organization (ICAO) and is composed of a four-letter code that identifies the state of registry and a four-digit number that is assigned by the ICAO. The ICAO maintains a database of all DIDs that have been assigned, which can be accessed by authorized users.