Clearances Flashcards
Clearances should be given by ATC when..
pilot is in low workload - not doing line-up/take-off/landing/taxiing manoevers
Types of clearnaces
Brief clearance
Route clearance
Enter a runway
Cross a runway
back-track on a runway
hold short of a runway
land on a runway
take off from a runway
Runway in use
Transponder code
Altimeter
Transilition level
level instructions
heading instructions
speed instructions
Frequency changes
Type of radar service
Very high frequency direction finding information
Taxi instructions
Approach instructions
how should the pilot respond to clearances
He must READ BACK the clearances word by word
1)confirms to ATC that the message was transmitted as intended
2)confirms that the pilot understood the transmission
3)confirms that the correct aircraft, an only that aircraft, will take action
Air traffic clearance is NOT
NOT an instruction to ‘take off’ or ‘to enter an active runway
to take off, ATC will give the following instructions
the words ‘**TAKE OFF’
or ‘Departure’ or ‘Airborne’
**
they might complement it with ‘now or immdediately’
What’s a conditional clearance
where a condition must be met before a clearance is acted upon
Example clearances
GS
G-ABCD, Cleared to enter Control Zone on your present track,
AC:
Maintain 2 500 feet, QNH 987.
Cleared to enter Control Zone on present track, Maintain 2 500
feet, QNH 987, G-ABCD.
If a read back is wrong by the pilot
Ex:
AC
QNH 1002, G-JM
GS
G-JM, Negative, QNH 992
AC
QNH 992, G-JM
If pilot cannot comply with ATC clearance
Ex:
GS
G-JM, Gerogetown Radar, Cleared to cross Wicken not below Flight Level 50
AC
Gerogetown Radar, G-JM, Unable to cross Wicken at Flight Level 50 due to weight
what is Clearance Limit
The point to which an aircraft is granted a clearance
‘Cleared to destination
‘Cleared to COL VOR’ (for flights switching from IFR to VFR’
