| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | ST | Aerodrome control tower (TWR) | | | 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 | A | Aerodrome information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5237N | 52° 37' North' | | Centre Longitude | 00029W | 0° 29' West | | Radius of area affected | 005 | 5 nautical miles |
| | WITTERING AIR TRAFFIC CONTROL TELEPHONE NUMBERS EXT 7505 AND 7050 UNSERVICEABLE.USE MOBILE PHONE 07860 382917 AND 07580 882090 |
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