Scenario 51: What is the fundamental difference between 'advisory' and 'control' services provided by Air Traffic Services (ATS)?

Question: Scenario 51: What is the fundamental difference between 'advisory' and 'control' services provided by Air Traffic Services (ATS)?

Answer options:

• Advisory services are for IFR only, control services are for VFR only. ✅ Advisory services provide suggestions, while control services issue instructions that must be obeyed.
• Advisory services are provided by automated systems, control services by human controllers.
• There is no practical difference between the two terms.

Correct answer: Advisory services provide suggestions, while control services issue instructions that must be obeyed.

Explanation: Advisory services (like flight information) provide pilots with information and suggestions for safe flight. Control services (like those from a control tower or ACC) issue mandatory instructions that pilots are required to follow to maintain separation and expedite traffic. The correct answer is "Advisory services provide suggestions, while control services issue instructions that must be obeyed.". This capacity-fill scenario 51 reinforces the same competency for the ppl-canada bank and follows the certified explanation standard.