CS ADR-DSN.M.725 Runway turn pad lights

• ED Decision 2017/021/R found in: Aerodromes (139/2014) Part-ADR.AR Part-ADR.OR Part-ADR.OPS CS-ADR-DSN CS-HPT-DSN (Dec 2024)

CS ADR-DSN.M.725 Runway turn pad lights ED Decision 2017/021/R (a) The safety objective of runway turn pad lights is to provide additional guidance on a runway turn pad to enable an aeroplane to complete a safe 180-degree turn, and align with the runway centre line. (b) Applicability: (1) Runway turn pad lights should be provided for continuous guidance on a runway turn pad intended for use in runway visual range conditions less than a value of 350 m to enable an aeroplane to complete a 180-degree turn, and align with the runway centre line. (2) Runway turn pad lights should be provided on a runway turn pad intended for use at night, except that these lights need not be provided where taxiway edge lights and runway turn pad marking provide adequate guidance. (c) Location: (1) Runway turn pad lights should normally be located on the runway turn pad marking, except that they should be offset by not more than 30 cm where it is not practicable to locate them on the marking. (2) Runway turn pad lights on a straight section of the runway turn pad marking should be spaced at longitudinal intervals of not more than 15 m. (3) Runway turn pad lights on a curved section of the runway turn pad marking should not exceed a spacing of 7.5 m. (d) Characteristics: (1) Runway turn pad lights should be unidirectional fixed lights showing green with beam dimensions such that the light is visible only from aeroplanes on or approaching the runway turn pad. (2) Runway turn pad lights should be in accordance with the specifications in [CS ADR-DSN.U.940](#_DxCrossRefBm151830505), Figure U-17 or Figure U-18, as appropriate. (3) Runway turn pad lights chromaticity should be in accordance with the specifications in [CS ADR-DSN.U.930](#_DxCrossRefBm151830859) and Figure U-1A or U-1B, as appropriate. [Issue: ADR-DSN/3] [Issue: ADR-DSN/4] CS ADR-DSN.M.725 Runway turn pad lights ED Decision 2017/021/R (a) The safety objective of runway turn pad lights is to provide additional guidance on a runway turn pad to enable an aeroplane to complete a safe 180-degree turn, and align with the runway centre line. (b) Applicability: (1) Runway turn pad lights should be provided for continuous guidance on a runway turn pad intended for use in runway visual range conditions less than a value of 350 m to enable an aeroplane to complete a 180-degree turn, and align with the runway centre line. (2) Runway turn pad lights should be provided on a runway turn pad intended for use at night, except that these lights need not be provided where taxiway edge lights and runway turn pad marking provide adequate guidance. (c) Location: (1) Runway turn pad lights should normally be located on the runway turn pad marking, except that they should be offset by not more than 30 cm where it is not practicable to locate them on the marking. (2) Runway turn pad lights on a straight section of the runway turn pad marking should be spaced at longitudinal intervals of not more than 15 m. (3) Runway turn pad lights on a curved section of the runway turn pad marking should not exceed a spacing of 7.5 m. (d) Characteristics: (1) Runway turn pad lights should be unidirectional fixed lights showing green with beam dimensions such that the light is visible only from aeroplanes on or approaching the runway turn pad. (2) Runway turn pad lights should be in accordance with the specifications in [CS ADR-DSN.U.940](#_DxCrossRefBm1800047367), Figure U-17 or Figure U-18, as appropriate. (3) Runway turn pad lights chromaticity should be in accordance with the specifications in [CS ADR-DSN.U.930](#_DxCrossRefBm1800047721) and Figure U-1A or U-1B, as appropriate. [Issue: ADR-DSN/3] [Issue: ADR-DSN/4] #### CS ADR-DSN.M.725 Runway turn pad lights *ED Decision 2017/021/R* (a) The safety objective of runway turn pad lights is to provide additional guidance on a runway turn pad to enable an aeroplane to complete a safe 180-degree turn, and align with the runway centre line. (b) Applicability: (1) Runway turn pad lights should be provided for continuous guidance on a runway turn pad intended for use in runway visual range conditions less than a value of 350 m to enable an aeroplane to complete a 180-degree turn, and align with the runway centre line. (2) Runway turn pad lights should be provided on a runway turn pad intended for use at night, except that these lights need not be provided where taxiway edge lights and runway turn pad marking provide adequate guidance. (c) Location: (1) Runway turn pad lights should normally be located on the runway turn pad marking, except that they should be offset by not more than 30 cm where it is not practicable to locate them on the marking. (2) Runway turn pad lights on a straight section of the runway turn pad marking should be spaced at longitudinal intervals of not more than 15 m. (3) Runway turn pad lights on a curved section of the runway turn pad marking should not exceed a spacing of 7.5 m. (d) Characteristics: (1) Runway turn pad lights should be unidirectional fixed lights showing green with beam dimensions such that the light is visible only from aeroplanes on or approaching the runway turn pad. (2) Runway turn pad lights should be in accordance with the specifications in [CS ADR-DSN.U.940](#_DxCrossRefBm1262884944), Figure U-17 or Figure U-18, as appropriate. (3) Runway turn pad lights chromaticity should be in accordance with the specifications in [CS ADR-DSN.U.930](#_DxCrossRefBm1262885298) and Figure U-1A or U-1B, as appropriate. [Issue: ADR-DSN/3] [Issue: ADR-DSN/4]