ATC Competency Interview Questions: 10 Examples with STAR Guidance

A competency-based interview is part of the NATS Stage 3 assessment centre, and many other ATC providers interview in a similar way. Unlike a traditional interview, every question asks you to describe a specific past experience — not what you would do hypothetically, but what you actually did. This guide explains the STAR method and walks through ten common ATC competency questions with guidance on how to structure strong answers.

The STAR Method

Every competency answer should follow the STAR structure:

Situation — Briefly set the scene. Where were you, what was your role, what were the circumstances?

Task — What was your specific responsibility or goal in that situation?

Action — This is the most important part. What did YOU do? Be specific, use first-person language, and describe your own decisions and behaviours rather than what "the team" did.

Result — What was the outcome? Quantify where possible. What did you learn?

A strong STAR answer takes 2–3 minutes to deliver and devotes most of its time to the Action section.

The Core Competency Areas

NATS assesses candidates against a defined competency framework. The most commonly tested areas include:

10 Common Questions with STAR Guidance

1. "Tell me about a time you had to manage multiple priorities under pressure."

ATC relevance: Controllers juggle several aircraft at once, so this is a useful skill to practise.

Look for an example where you genuinely had competing demands, made conscious decisions about prioritisation, and maintained performance. Study, sport, customer service and emergency response settings all work well. Avoid vague examples — "I was very busy at work" is not sufficient. Describe specific decisions.

2. "Give me an example of when you spotted an error that others had missed."

ATC relevance: Attention to detail is safety-critical in ATC. Catching errors before they cascade is a core controller skill.

Look for a real instance where your thoroughness prevented a problem. Could be academic (spotting a calculation error), professional (noticing a data discrepancy), or technical (identifying a fault). Emphasise what drew your attention, what you did with the information, and what the consequences would have been if you had missed it.

3. "Describe a time when you had to communicate complex information clearly under time pressure."

ATC relevance: Phraseology, readbacks and coordination calls require precise, efficient communication even when workload is high.

Aviation experience is ideal here but not required. Customer-facing roles, teaching, emergency situations, or any context requiring clear verbal instruction under pressure are all valid. Emphasise clarity, confirmation, and how you checked understanding.

4. "Tell me about a time you disagreed with a decision made by someone in authority."

ATC relevance: Controllers must be assertive enough to challenge unsafe decisions regardless of hierarchy.

Choose an example where you raised a concern professionally and constructively — not one where you simply complied with something you disagreed with. Assessors are looking for appropriate assertiveness, not compliance or confrontation.

5. "Give me an example of when you made a mistake and how you handled it."

ATC relevance: ATC has a strong safety and just culture. Controllers who cannot acknowledge errors or learn from them are a risk.

Choose a genuine mistake — not a humble-brag disguised as a weakness. Describe what went wrong, why, what you did immediately, how you corrected it, and what you changed afterwards. Honesty and the quality of your learning response matter more than the severity of the mistake.

6. "Describe a time when you had to learn something complex quickly."

ATC relevance: NATS trainee controllers must absorb an enormous amount of procedural knowledge in a short period.

Demonstrate genuine learning agility — how you approached an unfamiliar subject, what strategies you used, how you monitored your own understanding, and what the result was. Academic, professional and personal examples all work.

7. "Tell me about a time you worked effectively as part of a team under pressure."

ATC relevance: While controllers work individual positions, the whole team depends on effective coordination and mutual support.

Emphasise your specific contribution rather than the team's collective success. What role did you take? How did you support others? What did you do when the pressure increased?

8. "Give an example of when you had to adapt to a significant change."

ATC relevance: Operational changes, procedure updates, equipment failures and unexpected situations are daily realities in ATC.

Look for a genuine example where circumstances changed significantly and you had to adjust quickly. Describe your thought process — how you assessed the new situation, made decisions, and maintained effectiveness.

9. "Describe a time you had to stay focused on a routine task for a long period without losing concentration."

ATC relevance: Vigilance and sustained attention are essential, particularly during quiet periods when a sudden event can occur at any moment.

This could be monitoring, quality checking, driving, studying, or any context requiring sustained concentration. Be honest about the challenge — assessors know that sustaining attention over long periods is genuinely difficult — and describe the strategies you used.

10. "Why do you want to be an air traffic controller?"

ATC relevance: Intrinsic motivation predicts persistence through the demanding training programme.

Avoid generic answers about "liking planes" or "wanting a good salary." The strongest answers combine genuine interest in the cognitive challenge, awareness of the responsibility, specific knowledge of what the role actually involves, and personal evidence of sustained commitment (such as extended preparation, visits, or research). Show that you have genuinely explored what the role demands and actively want that challenge.

General Advice

Prepare at least three strong STAR examples from different contexts (work, study, sport, voluntary). Strong examples can be adapted to answer multiple different questions. Practice delivering them out loud — not reading from notes — until you can tell each story fluently in 2–3 minutes.