| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AF | Flight information region (FIR) | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 003 | 300 feet QNE | | | / | | | Centre Latitude | 5106N | 51° 6' North' | | Centre Longitude | 00059E | 0° 59' East | | Radius of area affected | 002 | 2 nautical miles |
| | HARRINGE COURT FARM MICROLIGHT SITE PERMANENTLY CLOSED.NO FURTHER AVIATION ACTIVITY.UK AERONAUTICAL INFORMATION PUBLICATION ENR 5.5 REFERS. |
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