Level instructions

The precise phraseology used in the transmission and acknowledgement of climb and descent clearances will vary, depending upon the circumstances, traffic density, and nature of the flight operations.

However, care must be taken to ensure that misunderstandings are not generated as a consequence of the phraseology employed during these phases of flight.

‘Level’ is a general term used when referring to altitude or flight level.

Only basic level instructions are detailed in this chapter. More comprehensive phrases are contained in subsequent chapters in the context in which they are most commonly used.

In the following examples the operations of climbing and descending are interchangeable and examples of only one form are given.

OO-ABC REPORT LEVEL

MAINTAINING 2500 FEET OO-ABC

OO-ABC REPORT PASSING FL100

OO-ABC WILCO (…)

OO-ABC PASSING FL100

OO-ABC MAINTAIN 3000 FEET

MAINTAINING 3000 FEET OO-ABC

OO-ABC CLIMB TO FL80

LEAVING 3000 FEET CLIMBING FL80 OO-ABC

REQUEST DESCENT OO-ABC

OO-ABC DESCEND FL 60

LEAVING FL 80 DESCENDING FL60 OO-ABC

FASTFLY 123 AFTER PASSING WEST TREE NDB DESCEND FL100

AFTER WEST TREE NDB DESCEND FL100 FASTFLY 123

Once given an instruction to climb or descend, a further overriding instruction may be given to a pilot.

FASTLFY 123 STOP DESCENT AT FL 90

STOPPING DESCENT AT FL 90 FASTFLY 123

FASTFLY 123 CONTINUE CLIMB TO FL 120

CONTINUING CLIMB TO FL 120 FASTFLY 123

FASTFLY 123 RECLEARED FL 120

RECLEARED FL 120 FASTFLY 123

Occasionally, for traffic reasons, a higher than normal rate of climb or descent may be required.

FASTLFY 123 EXPEDITE DESCENT TO FL 80

EXPEDITING DESCENT TO FL 80 FASTFLY 123

FASTFLY 123 CLIMB TO FL 240 EXPEDITE CLIMB UNTIL PASSING FL 180

CLIMBING TO FL 120 EXPEDITING UNTIL PASSING FL 180 FASTFLY 123

or

UNABLE TO EXPEDITE FASTFLY 123