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While under Flight Information Service, you wish to use your single radio to request an ATC clearance from another ground station. What phraseology should you use?

  • A

    G-ACZG, request change to ONE TWO FIVE DECIMAL SEVEN SEVEN FIVE.

  • B

    G-ACZG, changing to ONE TWO FIVE POINT SEVEN SEVEN FIVE.

  • C

    G-ACZG, request contact ONE TWO FIVE POINT SEVEN SEVEN FIVE.

  • D

    G-ACZG, request monitor ONE TWO FIVE DECIMAL SEVEN SEVEN FIVE.

The question states that the aircraft is flying under a Flight Information Service (FIS). A FIS Officer is not an Air Traffic Controller and can not issue instructions such as clearances for take-off or landing. Normally, when working with a FIS, you would choose when to change frequency and report "changing to..."

Looking at the answers:

'G-ACZG, request change to ONE TWO FIVE DECIMAL SEVEN SEVEN FIVE' --> CORRECT. Best possible answer. Requesting a change is unusual, normally you just inform that you are 'changing to...' According to feedback this is however the correct answer.

'G-ACZG, changing to ONE TWO FIVE POINT SEVEN SEVEN FIVE' --> INCORRECT. Use of the word "POINT".

'G-ACZG, request contact ONE TWO FIVE POINT SEVEN SEVEN FIVE' --> INCORRECT. Use of the word "POINT"

'G-ACZG, request monitor ONE TWO FIVE DECIMAL SEVEN SEVEN FIVE' --> INCORRECT. You would never request to monitor. Monitor is used by ATC when they want you to listen out on a frequency without making a call, typically used in busy airspace.

ICAO Doc 4444
12.3.1.4 TRANSFER OF CONTROL AND/OR FREQUENCY CHANGE

*e) REQUEST CHANGE TO (frequency);
* Denotes pilot transmission.

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