Section 28: Anti-collision light

(1) An aircraft fitted with an anti-collision light shall display such light in flight when operating by day. (2) An aircraft shall display, when stationary on the apron by day or night with engines running, a red anti-collision light when fitted. (3) When operating by night all aircraft shall display anti- collision lights, intended to attract attention to the aircraft. (4) When operating an anti-collision light, the lights shall be a flashing or rotating red light which shall show in all directions within _ 30 degrees above and 30 degrees below the horizontal plane of the aircraft. (5) In the event of a failure of anti-collision lights when flying by day, an aircraft may continue to fly provided that the lights are repaired at the earliest practicable opportunity.