6.2.2 The lights of a visual approach slope indicator system shall be operated during the hours of daylight as well as of darkness and irrespective of the visibility conditions when the associated runway is being used.
6.3 Runway lighting
Note.— Runway lighting includes such lights as edge, threshold, centre line, end, touchdown zone and wing bar lights.
6.3.1 Runway lighting shall not be operated if that runway is not in use for landing, take-off or taxiing purposes.
6.3.2 If runway lighting is not operated continuously, lighting following a take-off shall be provided as specified below:
a) at aerodromes where air traffic control service is provided and where lights are centrally controlled, the lights of one runway shall remain lighted after take-off as long as is considered necessary for the return of the aircraft due to an emergency occurring during or immediately after take-off;
b) at aerodromes without air traffic control service or without centrally controlled lights, the lights of one runway shall remain lighted until such time as would normally be required to reactivate the lights in the likelihood of the departing aircraft returning for an emergency landing, and in any case not less than fifteen minutes after take-off.
Note.— Where obstacle lighting is operated simultaneously with runway lighting as provided in 6.7.1, particular care should be taken to ensure that it is not turned off until no longer required by the aircraft.
6.4 Stopway lighting
6.4.1 Stopway lights shall be operated whenever the associated runway lights are operated.
6.5 Taxiway lighting
Note.— Taxiway lighting includes such lights as edge lights, centre line lights, stop bars and clearance bars.
6.5.1 Taxiway lighting shall be turned on in such order that a continuous indication of the taxi path is presented to taxiing aircraft. Taxiway lighting or any portion thereof may be turned off when no longer needed by the taxiing aircraft.
6.6 Stop bars
6.6.1 Stop bars shall be switched on to indicate that all traffic shall stop, and switched off to indicate that traffic may proceed.
6.7 Obstacle lighting
Note.— Obstacle lighting includes such lights as obstacle and unserviceability lights and hazard beacons.
6.7.1 Obstacle lighting associated with the approach to or departure from a runway or channel, where the obstacle does not project through the inner horizontal surface, as described in Annex 14, Volume I, Chapter 6, may be turned off and on simultaneously with the runway or channel lights.
6.7.2 Unserviceability lights may not be turned off as permitted under 6.1.2 while the aerodrome is open.
V. Aerodrome Control Service
6.8 Monitoring of visual aids
6.8.1 Aerodrome controllers shall make use of automatic monitoring facilities, when provided, to ascertain whether the lighting is in good order and functioning according to selection.
6.8.2 In the absence of an automatic monitoring system or to supplement such a system, the aerodrome controller shall visually observe such lighting as can be seen from the aerodrome control tower and use information from other sources such as visual inspections or reports from aircraft to maintain awareness of the operational status of the visual aids.
6.8.3 On receipt of information indicating a lighting fault, the aerodrome controller shall take such action as is warranted to safeguard any affected aircraft or vehicles, and initiate action to have the fault rectified.
INFORMATION TO AIRCRAFT BY
AERODROME CONTROL TOWERS
7. Information related to the operation of aircraft
Note.— See Part IX, 4.3 regarding flight information messages.
7.1 When so requested by the pilot prior to engine start, an expected take-off time should be given, unless engine start time procedures are employed.
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