The air navigation order states that white flashes signalled to an aircraft in flight mean that the aircraft should land at this aerodrome after receiving continuous green light. (ANO)
Air Navigation order Section 2 Schedule 1 The Rules of the Air Regulation Section 9 – 61 – Table 4
| Light Signal | to Aircraft in Flight | to Aircraft on Ground |
|---|---|---|
 |
Give way to other aircraft and continue circling | Stop |
 |
Do not land; wait for permission | Move clear of landing area |
 |
You may land | You may take off |
 |
Return to aerodrome; wait for permission to land | You may move on the manoeuvring area and apron |
 |
Land at this aerodrome after receiving continuous green light and then, after receiving green flashes, proceed to apron | Return to starting point on the aerodrome |