| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | XX | Miscellaneous | | | 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 | 013 | 1300 feet QNE | | | / | | | Centre Latitude | 5207N | 52° 7' North' | | Centre Longitude | 00033E | 0° 33' East | | Radius of area affected | 004 | 4 nautical miles |
| | MULTIPLE HEL OPERATING WITHOUT LIGHT WITHIN AREA BOUNDED BY STRAIGHT LINES JOINING : 520526N 0003018E-520523N 0003629E-520909N 0003626E-520911N 0003025E-520526N 0003018E ( HUNDON ). FOR INFO 01449 728240.AR-2025-2298 / 01. |
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