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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

IRImplementing rule

CS 25.1391Minimum 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 aheadIntensity 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 o41 (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

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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