| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | OL | Obstacle lights | | | AS | unserviceable | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | A | Aerodrome information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5128N | 51° 28' North' | | Centre Longitude | 00011W | 0° 11' West | | Radius of area affected | 005 | 5 nautical miles |
| | OBSTACLE LIGHTS UNSERVICEABLE ON BUILDING ( 512809N 0001044W HEIGHT 177FT ABOVE MEAN SEA LEVEL ) AND BUILDING ( 512809N 0001044W HEIGHT 194FT ABOVE MEAN SEA LEVEL ) ADJACENT AND SOUTH OF HELIPORT |
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