| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | CA | Air/ground | | | AS | unserviceable | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 021 | 2100 feet QNE | | | / | | | Centre Latitude | 5057N | 50° 57' North' | | Centre Longitude | 00056E | 0° 56' East | | Radius of area affected | 002 | 2 nautical miles |
| | LYDD TOWER FREQUENCY 119.380MHZ UNSERVICEABLE.ALL DEPARTING AND ARRIVING AIRCRAFT MAKE INITIAL CALL WITH LYDD APP FREQUENCY 120.705MHZ. |
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