You break out of the clouds at 800 feet, the runway is off your left shoulder, and now you have to fly a visual pattern to land on it — at minimum altitude, in marginal visibility, with terrain you may not be able to see on three sides. Welcome to the circling approach, the manoeuvre that has been quietly killing instrument pilots for decades.

Circling approaches are a staple of instrument flying. They exist because many airports have instrument approaches aligned with only one runway direction. When the wind favours the opposite direction, pilots fly the published approach to get below the clouds, then break off to circle visually and land the other way. In concept, it is straightforward. In practice, it is one of the most demanding manoeuvres in general aviation.

The accident statistics are stark. Circling approaches are flown on a small fraction of instrument flights, yet they account for a wildly disproportionate share of approach-and-landing fatalities. The common thread is almost always the same: a pilot descends below circling minimums, loses sight of the runway, and flies into terrain.

Why Circling Kills

The fundamental problem is geometry. A straight-in instrument approach is a controlled, stabilised descent to a runway you can see well before landing. A circling approach adds a visual manoeuvre at the worst possible moment — low, slow, close to terrain, with the runway moving from in front of you to beside you to behind you as you circle.

Maintaining visual contact with the runway environment throughout this manoeuvre is mandatory. Lose sight of it, and you are required to execute an immediate missed approach — climbing away on the published missed approach procedure. But at 800 feet above the ground, in rain or haze, with the runway disappearing behind a wing, the temptation to press on is enormous. That temptation kills.

Controlled flight into terrain — CFIT — is the primary cause of circling approach fatalities. The pilot is flying a functioning aircraft into the ground, usually because they descended below minimums, lost situational awareness of their position relative to terrain, or misjudged the visual segment of the approach.

What Most Training Gets Wrong

Ask most instrument-rated pilots when they last practised a circling approach in actual IMC, and the answer is rarely encouraging. The manoeuvre is tested on the instrument checkride — typically in visual conditions with a view-limiting device — and then largely forgotten. Real-world circling approaches in genuine marginal visibility are rare enough that many pilots go years without flying one.

That infrequency is itself a risk factor. When a pilot finally encounters a circling approach in actual conditions — low ceilings, reduced visibility, unfamiliar airport — they are executing a high-workload manoeuvre they may not have practised in months or years. The skills atrophy. The judgment calls get rusty.

The best defence is aggressive minimums discipline. Know your circling MDA cold. Add a personal buffer. If the ceiling is within 100 feet of circling minimums, consider whether the approach is worth attempting at all. And commit, absolutely and irrevocably, to going missed the instant you lose sight of the runway environment. No second chances. No “I’ll find it in a second.” Climb.

Respect the Circle

The circling approach is not inherently dangerous. Airline crews fly them routinely, with strict procedures, crew coordination, and corporate minimums that add healthy margins above the published numbers. The accidents cluster in single-pilot general aviation, where workload is highest, margins are thinnest, and the decision to press on rests on one person.

If there is one manoeuvre in instrument flying that deserves more respect, more practice, and more conservative personal minimums than it typically gets, it is the circling approach. The pilots who have been surprised by one — caught low, tight, and suddenly unable to see the runway — will tell you the same thing: it happens fast, and it is terrifying.

The ones who did not go missed in time are not around to tell you anything at all.

Sources: Boldmethod, FAA Instrument Procedures Handbook, Aviation Safety Magazine