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ICAO What Would You Do? Speaking Practice

Answer ICAO what would you do questions about unexpected aviation situations. Give a clear first action, a reason and a way to coordinate.

BRIEFING

Answer a hypothetical question

In ICAO what would you do questions, explain a realistic response rather than listing every possible action. Start with the situation and your immediate priority, then say who you would inform and what you would need to know before deciding the next step.

Use “If the runway were unavailable, I would discuss another option” for a hypothetical situation. For a possible future condition, “If the weather gets worse, I will ask for an update” is another useful pattern. Decisions depend on the applicable procedures, instructions and circumstances.

  1. Look at the picture or read the situation.
  2. Record your response using an if clause and a reason.
  3. Compare the models and type the missing conditional words.
PRACTICE

Work through the exercise

0 done

SPEAKING · WHAT IF

Vehicle on the taxiway

A service vehicle is stopped in front of an aircraft on a taxiway.

The examiner asks

Describe where the vehicle is. What would you do if it stopped on your taxi route?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

If the vehicle stopped ahead, I would stop the aircraft and tell ground control what I could see. I would make a check of our position and say that the route was blocked. Then I would wait for the controller’s reply and watch the vehicle. If the driver moved away, I would report that and ask for the next instruction before continuing. I would not guess why it stopped.

Notes for Level 4

Structure
Uses would and if; “make a check” is understandable but less direct than “check”.
Vocabulary
Uses taxi route, ground control, position and blocked.
Interactions
Reports the obstruction and requests the next instruction.
Pronunciation
Listen to how the model says “vehicle” and “position”, then repeat them clearly in your own recording.

The vehicle is stopped ahead on the taxiway. If a vehicle stopped on our taxi route, I would hold position and tell ground control our location and what we could see. I would keep the other pilot informed and ask for clarification if the intended route was uncertain. Once the vehicle was clear, I would report the change and coordinate the next movement. The response could change if the controller supplied a different instruction.

Notes for Level 5

Structure
Uses a conditional and once to organise the response.
Vocabulary
Uses hold position, location and intended route accurately.
Interactions
Includes an update and an explicit request for clarification.

The vehicle is stopped ahead on the taxiway. My first response would be to keep the aircraft stationary and give ground control a precise account of the obstruction and our position. I would avoid attributing a cause to the vehicle’s stop and listen for the controller’s response. If the vehicle moved clear, I would report that change and establish the next instruction before moving. The key is to maintain a shared picture as the situation develops.

Notes for Level 6

Structure
Uses an if clause and a purpose clause to explain coordination.
Vocabulary
Distinguishes an obstruction, an observation and an instruction.
Fluency
Moves naturally from immediate action to a changing situation.
Which model answer was closest to yours?

SPEAKING · WHAT IF

Weather ahead

Pilots see a large dark cloud ahead from the flight deck.

The examiner asks

Describe the visible cloud. What would you do if the planned route appeared to lead into that weather?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

If the dark cloud was ahead on our route, I would discuss it with the other pilot and check the available information. We would ask the controller for a deviation if we needed one. I would listen to the clearance and read it back. While we were avoiding the cloud, we would keep watching the weather and tell ATC if our needs changed.

Notes for Level 4

Structure
Uses if and would to describe a possible response.
Vocabulary
Uses route, deviation, clearance and readback.
Interactions
Makes a request and keeps ATC informed.

If the planned track appeared to lead into that dark cloud, I would assess the weather information with the other pilot and decide what deviation we needed. I would request it from ATC, read back the clearance and monitor the conditions as we proceeded. If the approved route became unsuitable, I would advise ATC promptly and coordinate a revised plan, following the applicable procedures.

Notes for Level 5

Structure
Combines a condition with a possible change in plan.
Vocabulary
Uses planned track, assess and revised plan precisely.
Interactions
Explains the initial request and a follow-up if needs change.

I would treat the large dark cloud ahead as a reason to reassess the route, rather than assume its extent from the view alone. After reviewing the available information with the other pilot, I would request the deviation we needed and check the terms of any clearance. If the situation developed differently from expected, we would advise ATC and coordinate another option while continuing to monitor the weather.

Notes for Level 6

Structure
Qualifies visual evidence and uses a conditional to develop the plan.
Vocabulary
Distinguishes the cloud’s appearance from its extent.
Comprehension
Shows what further information would influence the decision.
Which model answer was closest to yours?

SPEAKING · WHAT IF

A passenger feels unwell

Cabin crew attend to a passenger who appears unwell.

The examiner asks

Describe the visible cabin scene. What would you do if the cabin crew reported that this passenger was unwell?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

A cabin crew member is beside the seated passenger. If the cabin crew told us that a passenger was unwell, I would ask what they knew about the person’s condition. I would discuss the information with the other pilot and ask the cabin crew to keep us updated. If we needed assistance, I would tell the controller what we knew and what we requested. Our next decision would depend on the information and the situation.

Notes for Level 4

Structure
Uses a conditional and a clear sequence.
Vocabulary
Uses condition, update, assistance and controller.
Interactions
Asks for information before communicating a need.

A cabin crew member is beside the seated passenger. I would ask the cabin crew for a factual update on the passenger’s condition and what help was available on board. The flight crew would consider the situation and the available options using the applicable guidance. If assistance on arrival or a change of plan were needed, I would tell ATC clearly what we required and continue to pass on relevant updates from the cabin.

Notes for Level 5

Structure
Uses if to connect a need with an appropriate request.
Vocabulary
Uses factual update, available options and assistance.
Interactions
Links cabin information to a clear message for ATC.

The image shows someone being attended to, but it does not establish the nature or seriousness of the problem. I would ask the cabin crew what is known, what support is available and whether the condition is changing. The flight crew could then assess the options under the applicable procedures. If we needed assistance or a change of plan, I would explain the situation and our request to ATC without speculating about a diagnosis.

Notes for Level 6

Structure
Separates observation from a conditional decision.
Vocabulary
Distinguishes condition, diagnosis and operational options.
Comprehension
Does not infer a diagnosis or severity from the image.
Which model answer was closest to yours?

SPEAKING · WHAT IF

An unusual indication

Pilots point to an instrument display in a parked aircraft.

The examiner asks

Describe what the pilots are looking at. What would you do if an instrument showed an unexpected indication before taxi?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

The pilots are looking at an instrument display together. If I saw an unusual indication before taxi, I would tell the other pilot and describe what I could see. We would check the applicable aircraft procedure and contact maintenance if necessary. If this delayed us, I would tell ground control that we were not ready. We would wait for the checks before deciding what to do next. I would not say the instrument had failed until we knew.

Notes for Level 4

Structure
Uses if to connect the indication with a response.
Vocabulary
Uses indication, maintenance, checks and ready.
Interactions
Includes a status update to ground control.

The pilots are looking at an instrument display together. I would first compare the indication with what the other pilot observed and consult the applicable guidance. If the issue required maintenance, we would describe the symptom clearly and ask for assistance. We would inform ground control if our readiness changed. The result of the checks, the applicable procedures and any advice from the responsible team would determine whether we could continue.

Notes for Level 5

Structure
Uses conditions to connect evidence with a later decision.
Vocabulary
Distinguishes a symptom, an issue and a decision.
Interactions
Gives maintenance a clear description and ATC a status update.

The pilots are looking at an instrument display together. An unexpected indication is a starting point, not a diagnosis. I would share the observation with the other pilot, consult the relevant procedures and involve maintenance as appropriate. If the investigation affected our departure, I would update ground control rather than leave them expecting us to move. Whether we continued would depend on the checks and applicable guidance; I would not infer serviceability from the display alone.

Notes for Level 6

Structure
Contrasts an observation with a conclusion and qualifies the decision.
Vocabulary
Uses diagnosis, serviceability and readiness in context.
Comprehension
Keeps the final decision dependent on evidence.
Which model answer was closest to yours?

SPEAKING · WHAT IF

Reduced tower visibility

Controllers observe an airfield through rain-streaked tower windows.

The examiner asks

Describe the view through the tower windows. As a controller, what would you do if it became more restricted while traffic was moving?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

Rain is on the windows and the airfield is difficult to see. If the view became even worse, I would pay close attention to the traffic and follow the local procedures. I would give pilots relevant updates and coordinate with the other controller. If I was not sure about a position, I would ask for confirmation. I would check the information before giving the next instruction, because I would not want to make a guess.

Notes for Level 4

Structure
Uses an if clause and a reason.
Vocabulary
Uses airfield, position, confirmation and instruction.
Interactions
Requests confirmation when a position is uncertain.

Rain is obscuring the view of the airfield. If it became more restricted, I would apply the procedures for the conditions and reassess the traffic picture using the information available. I would coordinate with colleagues and pass relevant updates to pilots. If an aircraft or vehicle position were uncertain, I would establish it before issuing an instruction that depended on that position. The response would depend on the equipment and local procedures.

Notes for Level 5

Structure
Conditional structures describe both a general response and uncertainty.
Vocabulary
Uses restricted view, traffic picture and position.
Interactions
Connects clarification to the next instruction.

The rain has already reduced the outside view in this scene. If it deteriorated further, I would reassess the traffic picture, apply the unit’s procedures and coordinate closely with colleagues. I would use the information available without treating an uncertain position as confirmed, and I would communicate relevant changes to pilots. The exact response would depend on local arrangements, so a clear clarification is preferable to an unsupported assumption.

Notes for Level 6

Structure
Uses a hypothetical change and a qualified conclusion.
Vocabulary
Distinguishes uncertain and confirmed information.
Comprehension
Relates the response to visible conditions without inventing a visibility value.
Which model answer was closest to yours?

SPEAKING · WHAT IF

A wrong readback

The examiner asks

As a controller, what would you do if a pilot read back an altitude different from the one you had issued?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

If the pilot read back a different altitude, I would correct the mistake clearly. I would repeat the altitude that I had given and use the aircraft call sign. Then I would listen to the new readback. If it was still not clear, I would ask the pilot to say it again. I would make sure we understood the same instruction before continuing.

Notes for Level 4

Structure
Uses a conditional followed by ordered actions.
Vocabulary
Uses altitude, call sign, correction and readback.
Interactions
Includes correction and a further check.

I would address the aircraft by its call sign, indicate that the readback was incorrect and repeat the intended altitude. I would then listen carefully to the pilot’s corrected readback. If it still did not match, I would clarify again rather than assume the discrepancy had been resolved. The aim is to restore a shared understanding of the instruction.

Notes for Level 5

Structure
Uses if and rather than to explain the follow-up.
Vocabulary
Uses intended altitude, discrepancy and corrected readback.
Interactions
Completes the correction through hearback.

A readback that differs from the clearance needs an explicit correction. I would identify the aircraft, state the correct altitude and listen to the response, repeating or clarifying as necessary. I would not treat an unclear acknowledgement as proof that the discrepancy had been resolved. If uncertainty remained, I would continue the exchange until the instruction was understood, while managing the rest of the traffic situation.

Notes for Level 6

Structure
Uses a condition and a time clause to show how uncertainty is resolved.
Vocabulary
Distinguishes a clearance, acknowledgement and corrected readback.
Comprehension
Recognises that an acknowledgement alone may leave uncertainty.
Which model answer was closest to yours?

SPEAKING · WHAT IF

An unclear frequency change

The examiner asks

What would you do if you could not hear the new frequency clearly during a handover?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

If I could not hear the new frequency, I would stay on the current frequency and ask the controller to say it again. I would listen to the complete number and read it back with the call sign. Then I would select the new frequency and make the first call. If I was still unsure, I would ask again rather than choose a number I had not heard.

Notes for Level 4

Structure
Uses if and would for an uncertain handover.
Vocabulary
Uses frequency, call sign, readback and first call.
Interactions
Requests repetition and checks the result.

I would remain on the current frequency and ask the controller to repeat the new one. After hearing it clearly, I would read it back with my call sign, select it and listen before making the initial call. If any part remained unclear, I would clarify it before changing frequency. Guessing could leave the crew unable to contact the intended station.

Notes for Level 5

Structure
Uses after and if to order the handover.
Vocabulary
Uses current frequency, initial call and intended station.
Interactions
Resolves uncertainty with the original controller.

I would ask the current controller to repeat the frequency, then read it back in full with the call sign. Only once it was clear would I select it, listen and make the initial call to the next station. If the repeat were still ambiguous, I would say which part I had missed. That gives the controller a specific problem to resolve and reduces the chance of a misdirected handover.

Notes for Level 6

Structure
Uses inversion and a conditional for a precise sequence.
Vocabulary
Uses ambiguous, misdirected and handover accurately.
Interactions
The specific clarification identifies the missing information.
Which model answer was closest to yours?

SPEAKING · WHAT IF

A colleague reports fatigue

The examiner asks

Before duty, a colleague tells you they feel too tired to work effectively. How would you respond?

Your taskExplain your first response, what you would communicate and what could change your plan.

Model answers

If a colleague told me they were too tired to work, I would listen and take the concern seriously. I would ask what support they needed and encourage them to use the reporting procedure that applies to us. I would inform the appropriate person through the proper channel. We would discuss the next step rather than assume that the colleague could continue safely.

Notes for Level 4

Structure
Uses a hypothetical condition and would.
Vocabulary
Uses fatigue, support, reporting and duty.
Interactions
Shows listening and a clear route for raising the concern.

I would listen without dismissing the concern and discuss it with the colleague. If they felt unable to work effectively, I would help them use the applicable reporting process and involve the appropriate person. Any decision about duty would follow that process and the actual circumstances. A useful response is supportive and specific: establish who needs to know and what the colleague needs next.

Notes for Level 5

Structure
Uses if and a qualification to avoid prescribing one outcome.
Vocabulary
Uses reporting process, duty and circumstances.
Interactions
Balances listening with communicating through the right channel.

I would take the report seriously, make space for the colleague to explain the concern and help them use the organisation’s reporting process. I would involve the appropriate person rather than make a private judgement on their fitness for duty. The outcome would depend on the circumstances and the applicable process. What matters in the conversation is that the concern is heard, documented as required and acted on without blame.

Notes for Level 6

Structure
Qualifies the outcome while maintaining a clear conditional response.
Vocabulary
Uses fitness for duty, reporting and without blame naturally.
Interactions
Shows supportive listening and a practical escalation path.
Which model answer was closest to yours?

PRACTICE 09

Build the conditional

Type only the missing word.

Show model answer and explanation

Model answer: would

Would completes the hypothetical response to a situation that is imagined.

Show model answer and explanation

Model answer: will

Will fits this possible future response after the present-tense condition.

Show model answer and explanation

Model answer: hold

After would, use the base form hold.

Show model answer and explanation

Model answer: say

After to, use the base form say in the request say again.

Check your answers and compare your speaking with the model, then see your practice debrief.

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FAQ

Common questions

How do I answer ICAO what would you do questions?

State your immediate priority, explain who you would inform and add a condition that could change your plan. Give a reason without claiming a single response fits every situation.

Which conditional should I use for hypothetical aviation questions?

A common pattern is “If the route were unclear, I would ask for clarification.” For a possible future condition, you can use “If it gets worse, I will request an update.”

What if I do not know the technical procedure?

Describe the information you would need, who you would inform and how you would consult the applicable guidance. Avoid inventing a checklist.

How can I extend a short answer?

Add why the action matters, how you would coordinate with another person and what new information could change your response.

Are these real test questions?

No. These are original independent practice scenarios. Test formats vary by provider.