---
title: "Loss of separation — aviation glossary — OnlyPlanes"
description: "A situation in which the required spacing between aircraft is no longer maintained."
canonical_url: "https://onlyplanes.ru/en/learn/loss-of-separation"
locale: en
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  "og:description": "A situation in which the required spacing between aircraft is no longer maintained."
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  "og:title": "Loss of separation — aviation glossary"
---

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Safety

# Loss of separation

TERM · Safety

At a glance

## Meaning of Loss of separation

A situation in which the required spacing between aircraft is no longer maintained.

### More about Loss of separation

Separation can be vertical, lateral or longitudinal, depending on the airspace and method of control.

A loss of separation is not automatically a collision, but it requires assessment and appropriate action. The applicable minimum and the actual circumstances determine the significance of the event.

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