---
title: "Precision Approach Path Indicator — aviation glossary — OnlyPlanes"
description: "A visual light system indicating an aircraft's position relative to an approach slope."
canonical_url: "https://onlyplanes.ru/en/learn/papi"
locale: en
meta:
  keywords: "Precision Approach Path Indicator, Precision Approach Path Indicator"
  "og:description": "A visual light system indicating an aircraft's position relative to an approach slope."
  "og:image": "https://onlyplanes.ru/images/aviation/aircraft/boeing-787.webp"
  "og:title": "Precision Approach Path Indicator — aviation glossary"
---

> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Aviation abbreviation

# Precision Approach Path Indicator

ABBR · Airports

At a glance

## Meaning of Precision Approach Path Indicator

A visual light system indicating an aircraft's position relative to an approach slope.

### More about Precision Approach Path Indicator

A Precision Approach Path Indicator uses a pattern of red and white lights to show whether the aircraft is above, below or near the intended slope.

Its guidance must be interpreted within the published conditions. It does not replace lateral alignment, obstacle assessment or an instrument approach clearance.

```json
{"@context":"https://schema.org","@type":"DefinedTerm","@id":"https://onlyplanes.ru/en/learn/papi#term","name":"Precision Approach Path Indicator","alternateName":["Precision Approach Path Indicator"],"description":"A visual light system indicating an aircraft's position relative to an approach slope.","inDefinedTermSet":{"@type":"DefinedTermSet","@id":"https://onlyplanes.ru/en/learn#glossary","name":"OnlyPlanes aviation glossary"},"url":"https://onlyplanes.ru/en/learn/papi"}
```

```json
{"@context":"https://schema.org","@graph":[{"@id":"https://onlyplanes.ru/en#website","@type":"WebSite","description":"News, stories and rare images from the world of aviation","inLanguage":"en-GB","name":"OnlyPlanes","url":"https://onlyplanes.ru/en","publisher":{"@id":"https://onlyplanes.ru/en#identity"},"translationOfWork":{"@id":"https://onlyplanes.ru/en#website"}},{"@id":"https://onlyplanes.ru/en/learn/papi#webpage","@type":"WebPage","description":"A visual light system indicating an aircraft's position relative to an approach slope.","name":"Precision Approach Path Indicator — aviation glossary","url":"https://onlyplanes.ru/en/learn/papi","isPartOf":{"@id":"https://onlyplanes.ru/en#website"},"potentialAction":[{"@type":"ReadAction","target":["https://onlyplanes.ru/learn/papi"]}],"primaryImageOfPage":{"@id":"https://onlyplanes.ru/en#logo"}},{"@id":"https://onlyplanes.ru/en#identity","@type":"Organization","name":"OnlyPlanes","url":"https://onlyplanes.ru/en","logo":{"@id":"https://onlyplanes.ru/en#logo"},"sameAs":["https://t.me/legkoenebo"]},{"@id":"https://onlyplanes.ru/en#logo","@type":"ImageObject","caption":"OnlyPlanes","contentUrl":"https://onlyplanes.ru/search-logo.png","inLanguage":"en-GB","url":"https://onlyplanes.ru/search-logo.png"}]}
```

## Sitemap

See the full [sitemap](https://onlyplanes.ru/sitemap.md) for all pages.