| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | WO | Laser emissions | | | LW | will take place | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5137N | 51° 37' North' | | Centre Longitude | 00257W | 2° 57' West | | Radius of area affected | 002 | 2 nautical miles |
| | LASER DISPLAY WITHIN 1NM RADIUS OF 513656N 0025720W ( CROES-Y-MWYALCH ). FOR INFO 07517 443514.AR-2026-7655 / 01. |
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