| Light signals |
| On ground |
Light mode |
In flight |
| Authorised to take off if pilot is satisfied that no collision risk exists |
Green |
Authorised to land if pilot is satisfied that no collision risk exists |
| Authorised to taxi if pilot is satisfied that no collision risk exists |
Green flashing |
Return for landing |
| Stop |
Red |
Give way to other aircraft Continue circling |
| Taxi clear of landing area In use |
Red flashing |
Do not land Aerodrome unsafe |
| Return to starting point on aerodrome |
White flashing |
Return for landing |
