| 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 | A | Aerodrome information | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 004 | 400 feet QNE | | | / | | | Centre Latitude | 5307N | 53° 7' North' | | Centre Longitude | 00031W | 0° 31' West | | Radius of area affected | 001 | 1 nautical miles |
| | CRANE OPERATING 530639N 0003102W ( NAVENBY VILLAGE,WADDINGTON ). MAXIMUM HEIGHT 100FT ABOVE GROUND LEVEL,331FT ABOVE MEAN SEA LEVEL |
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