| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | WZ | Model flying | | | LW | will take place | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | A | Aerodrome information | | | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 010 | 1000 feet QNE | | | / | | | Centre Latitude | 5148N | 51° 48' North' | | Centre Longitude | 00022W | 0° 22' West | | Radius of area affected | 001 | 1 nautical miles |
| | FIREWORKS WITHIN 0.5NM RADIUS OF 514804N 0002224W ( HARPENDEN ). FOR INFO 07515 093854 / 01462 817640.AR-2026-9792 / 01. |
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