| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | OL | Obstacle lights | | | XX | miscellaneous plain language | | | / | | | 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 | 002 | 200 feet QNE | | | / | | | Centre Latitude | 5135N | 51° 35' North' | | Centre Longitude | 00042E | 0° 42' East | | Radius of area affected | 001 | 1 nautical miles |
| | AERONAUTICAL INFORMATION PUBLICATION SUPPLEMENT 066 / 2024 SOUTHEND AIRPORT ( EGMC )-CHIMNEY OBSTRUCTION LIGHT UNSERVICEABLE-CANCELLED. |
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