ATPL: An aircraft shall display, if so equipped, an anti-collision light:
Domanda 100, Air Law - ATPL - Airline Transport Pilot license
| While taxiing, but not when it is being towed |
| Outside the daylight-period in flight, but not on the ground when it is being towed |
| Outside the daylight-period at engine-start. During the daylight-period this is not applicable |
| On the ground when the engines are running |
