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CS 25.1395 Maximum intensities in over-lapping beams of forward and rear position lights

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

IRImplementing rule

CS 25.1395Maximum intensities in over-lapping beams of forward and rear position lights

No position light intensity may exceed the applicable values in the following table, except as provided in CS 25.1389(b)(3):

OverlapsMaximum intensity
Area A candela (candles)Area B candela (candles)
Green in dihedral angle L101
Red in dihedral angle R101
Green in dihedral angle A51
Red in dihedral angle A51
Rear white in dihedral angle L51
Rear white in dihedral angle R51

Where –

(a)Area A includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 10° but less than 20°; and

(b)Area B includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 20°.

IR · CS 25.1395 — 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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