Description

This article describes the best practices to be used by air traffic controllers to maximize the chance that an aircraft without transponder is detected as soon as possible and to mitigate its impact on the provision of air traffic service.

Suggested actions

The advice given in this section is derived from experience, best practices and common sense. It is not intended to replace or supersede local instructions and procedures.

The following actions usually help the controller to adequately handle a situation where an aircraft is experiencing a transponder failure: