Article 111 Lighting of en-route obstacles

For the purposes of this article an en-route obstacle means any building, structure or erection which is 150 metres or more above ground level other than any such building, structure or erection which is in the vicinity of a certificated or licensed aerodrome.

The person in charge of an en-route obstacle shall ensure that it is fitted with medium intensity steady red lights positioned as close as possible to the top of the obstacle and at intermediate levels spaced so far as practicable equally between the top lights and ground level with an interval not exceeding 52 metres.

The person in charge of an en-route obstacle shall ensure that, by night, the lights required to be fitted by this article shall be displayed.

In the event of the failure of any light which is required by this article to be displayed by night the person in charge shall repair or replace the light as soon as is reasonably practicable.

At each level on the obstacle where lights are required to be fitted, sufficient lights shall be fitted and arranged so as to show when displayed in all directions.

In any particular case the Governor may direct that an en-route obstacle shall be fitted with and shall display such additional lights in such positions and at such times as he may specify.

This article shall not apply to any en-route obstacle in respect of which the Governor has granted permission to the person in charge.

A permission may be granted for the purposes of this article in respect of a particular case or class of cases or generally.