Clearance

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Line Up

When instructing aircraft to line up, the runway entry point must be included in the clearance:

"BAW123, via A1, line up runway 27L"

When using "line up", VIA is used

When using "Cross" or "Enter", AT is used

"BAW123, at D3, Cross runway 27"

"Checker, at F7, enter runway 33"


Conditional Clearances

Conditional Clearances for line up can be used but these should be used with extreme caution, especially in our online environment. Make sure that any conditional clearances states specifically what the aircraft should do and when it should do it. There should be no doubt in the pilots mind about what he should do.


Take-Off

A take-off clearance must be issued seperately from any other clearance message. Take-off clearances should be passed in the following format: <Callsign>"Cleared for take-off"<Wind>

When there are multiple runways in use at an airport, the runway number should be included in the take-off clearance: <Callsign><Runway>"Cleared for take-off"<Wind>

During low visibility, the runway number should be included in the take-off clearance, along with a clearance to report when airborne: "BAW123, Runway 33, cleared for take-off, surface wind 330 degrees 16 knots, report airborne"

Except in an emergency, messages should not be transmitted to an aircraft in the process of taking off.

If an aircraft is not at a holding point at the end of the runway, 'via A1 runway 26, cleared for take off' should be used. This is to ensure the pilot doesn't backtrack the runway without permission.

Immediate take-off

For traffic reasons, it may be necessary for an aircraft to take off immediately. For aircraft at the holding point, this means rolling onto the runway and commencing take-off without stopping the aircraft and for aircraft already lined up on the runway, commencing take-off without delay. NOTE - An immediate take-off must not be given to an aircraft of a Super or Heavy wake vortex category If you require an aircraft to make an immediate take-off, you must first ask the aircraft if they can accept one.

If the pilot accepts, then the take-off clearance must include the word "immediate":


Landing

A landing clearance must be issued seperately from any other clearance message. Landing clearances should be passed in the following format: <Callsign>"Cleared to land"<Wind>

When there are multiple runways in use at an airport or during low visibility, the runway number should be included in the landing clearance: <Callsign><Runway>"Cleared to land"<Wind>

Except in an emergency, messages should not be transmitted to an aircraft in the final stages of approach and landing.

Continuing Approach

If there is an aircraft on final approach but the runway is not yet clear, then the aircraft should be instructed to continue it's approach. It should also be passed the current surface wind.

Late landing clearance

If you anticipate that an aircraft is going to get very close to the runway before a landing clearance can be issued, it is useful to tell the pilot that he can expect a late landing clearance and if time permits, the reason why.