---
title: "CS 25.1391 Minimum intensities in the horizontal plane of forward and rear position lights — CS-25 · Avioverse"
description: "Each position light intensity must equal or exceed the applicable values in the following table:"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-f/cs-25-1391"
---

# CS 25.1391 Minimum intensities in the horizontal plane of forward and rear position lights

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

IR Implementing rule

## CS 25.1391 Minimum intensities in the horizontal plane of forward and rear position lights

Each position light intensity must equal or exceed the applicable values in the following table:

| Dihedral angle (light included)                | Angle from right or left of longitudinal axis, measured from dead ahead | Intensity candela (candles) |
| ---------------------------------------------- | ----------------------------------------------------------------------- | --------------------------- |
| L and R (forward red and green) A (rear white) | 0o to 10 o 10 o to 20 o 20 o to 110 o 110 o to 180 o                    | 41 (40) 31 (30) 5 20        |

IR · CS 25.1391 — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART F – EQUIPMENT](https://avioverse.aero/regulations/easa/cs-25/subpart-f)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.