Closed-loop communication: the pilots’ technique for avoiding misunderstandings at work
“I thought you had done it.” “I thought it was clear.” Many team incidents stem from information that was sent but not received, or received but misunderstood. Pilots and air traffic controllers have a simple defence: closed-loop communication.
In brief
- Information is only passed on once it has been received, repeated and confirmed.
- The method has three steps: I say it, they repeat it, I confirm.
- It is used for important information, not for every conversation.
- It is easy to train, and shows up immediately in a serious game.
The principle
In open communication, the sender speaks and assumes the message got through. In closed-loop communication, the loop only closes when the sender has proof that the recipient understood. That is the principle of read-back, used every day on the radio between pilots and controllers.
Three steps
- I say it: a short, precise message, addressed to someone by name or role.
- They repeat it: the recipient repeats the essentials, in their own words or word for word depending on the stakes.
- I confirm: “correct”, or I correct it straight away.
Radio example
“AFR62, descend flight level 090, heading 270.” — “Descending flight level 090, heading 270, AFR62.” — “AFR62, read-back correct.”
Why it works so well
The closed loop turns an assumption into a check. It catches errors when they happen, before they spread. It also forces clear messages: it is hard to repeat a vague instruction.
Ambiguity can be very costly. In Tenerife in 1977, overlapping radio messages and unclear phraseology contributed to the collision of two Boeing 747s. Since then, the word “takeoff” has been reserved for the take-off clearance.
In the office, the operating theatre, the workshop
The method applies wherever important information changes hands: handover between two teams, a safety instruction, a decision made in a meeting, an urgent file being passed on. The WHO surgical safety checklist, which gets the team talking before the incision, rests on the same idea.
- In meetings: restate the decision made and who is responsible, before leaving.
- On the phone: repeat figures, dates and names.
- At handover: ask the person taking over to summarise what they have understood.
Training it
Like any reflex, the closed loop is acquired through practice. In our Air Traffic Controller and Civil Protection scenarios, participants communicate by radio under pressure: loops that don’t close show up immediately, and the debriefing helps correct them.
FAQ
Frequently asked questions
Should all information be read back?
No, only information whose misunderstanding would have consequences: figures, instructions, decisions, safety information.
Isn’t it a waste of time?
A few seconds of repetition cost far less than an error to fix. In practice, it often saves time, because it avoids back-and-forth.
Sources
- PBS Nova, Tenerife: the final eight minutes
- Journalist’s Resource, the study on the WHO surgical safety checklist
