The Pilots Who Made the Checklist Famous

The story

Why do grown-ups love lists so much? Shopping lists, packing lists, lists of jobs stuck on the fridge. It can look like the most boring habit in the world. But the humble list has a hero story, and it begins with an aeroplane.

Nearly a hundred years ago, in America, aeroplane builders rolled out a giant new plane, one of the biggest and most advanced of its day, with four engines and far more switches, levers and dials than pilots were used to. Highly experienced pilots climbed aboard for a test flight. And in front of everyone, moments after take-off, the great plane tipped over and crashed to the ground.

What had gone wrong? The engines were sound, and nothing had snapped or failed. But a lock that held part of the tail still while the plane sat on the ground was found still fastened. Somewhere in all the busyness of take-off, with so many new switches and steps to mind, that one small step had most likely been missed, even by highly experienced flyers.

Some people said the new plane was simply too complicated to fly. But the pilots also found another answer, one that did not depend on anyone being brilliant. Not a simpler plane, for planes were only getting cleverer. Their answer was a short written list. Before take-off, check this, then this, then this, every flight, every time, no matter how experienced you are.

It worked. With checklists and careful training, later planes of that very kind went on to fly for years upon years. And the idea spread through all of flying. To this day, airline crews around the world run through their checklists before take-off, confirming the important steps aloud, flight after flight, even after thousands of flights.

Then the idea jumped out of the cockpit. Doctors borrowed it for operations, a short list, spoken out loud, making sure of the important things, right person, right medicine, everyone knowing their job. In one early study across eight hospitals around the world, after the list arrived, fewer patients ran into serious trouble. Builders use lists. Rocket teams use lists. Divers are taught to run a safety check before they go under.

And here is the deep truth the pilots discovered. A list is not for people with bad memories. A list is for the days when a good memory is busy, tired or rushed. The strongest thinkers in the world still drop small things, and some small things matter enormously. The list is a net that catches them.

So the next time you pack your school bag against a list, or tick off your jobs on a chart at home, stand a little taller. You are using the same trick as the pilots, the surgeons and the rocket teams. One small tick at a time, the list catches what busy heads drop.