ED Decision 2021/004/R
(a) A system of monitoring should be employed to indicate the operational status of the lighting systems.
(b) Where lighting systems are used for aircraft control purposes, such systems should be monitored automatically so as to provide an indication of any fault which may affect the control functions. This information should be automatically relayed to the air traffic service unit.
(c) Where a change in the operational status of lights has occurred, an indication should be provided within two seconds for a stop bar at a runway-holding position and within five seconds for all other types of visual aids.
(d) For a runway meant for use in runway visual range conditions less than a value of 550 m, the lighting systems detailed in Table S-1 should be monitored automatically so as to provide an indication when the serviceability level of any element falls below a minimum serviceability level specified in ADR.OPS.C.015 (b)(1) to (b)(7). This information should be automatically relayed to the maintenance crew.
(e) For a runway meant for use in runway visual range conditions less than a value of 550 m, the lighting systems detailed in Table S-1 should be monitored automatically to provide an indication when the serviceability level of any element falls below a minimum level, below which operations should not continue. This information should be automatically relayed to the air traffic services unit and displayed in a prominent position.
[Issue: ADR-DSN/3]
[Issue: ADR-DSN/5]
CS ADR-DSN.S.890 mandates monitoring of aerodrome lighting systems, including automatic fault indication for control lights, specific response times, and RVR-based serviceability alerts relayed to ATS and maintenance.
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