| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | WE | Exercises | | | LW | will take place | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5106N | 51° 6' North' | | Centre Longitude | 00103W | 1° 3' West | | Radius of area affected | 002 | 2 nautical miles |
| | SEARCHLIGHT DISPLAY WITHIN 1NM RADIUS : 510623N 0010324W ( ALTON ) FOR INFO 07764 494726.AR-2024-7 / AU2. |
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