| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | OB | Obstacle | | | CE | erected | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 013 | 1300 feet QNE | | | / | | | Centre Latitude | 5247N | 52° 47' North' | | Centre Longitude | 00325W | 3° 25' West | | Radius of area affected | 001 | 1 nautical miles |
| | MAST POSITION 524655N 0032513W ( LLANWDDYN,POWYS ) IN LOW FLYING AREA 7 AND NIGHT SECTOR 5E HEIGHT 1300FT ABOVE MEAN SEA LEVEL ( 150FT ABOVE GROUND LEVEL ) UNLIT 26 / 01 / 082 / LFC |
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