Approach Control Services

For controlled traffic near an airport, under what circumstances can separation minima be reduced?

• AAt the discretion of the air traffic controller
• BWhen the commander in the following aircraft has the preceding aircraft in sight and is able to maintain own separation
• CIf the commander of the involved aircraft so requests

At the start of the final approach, if the controller has wind component information, they must inform aircraft of any significant changes in mean surface wind direction and speed; what is the significant change for the mean tailwind component?

• A3kt
• B4kt
• C2kt

The EAT must be communicated to the pilot promptly if the anticipated delay is:

• A5 minutes or more
• B15 minutes or more
• C20 minutes