| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | NN | TACAN | | | XX | miscellaneous plain language | | | / | | | 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 | 999 | Unlimited | | | / | | | Centre Latitude | 5310N | 53° 10' North' | | Centre Longitude | 00031W | 0° 31' West | | Radius of area affected | 025 | 25 nautical miles |
| | TACAN WAD / WADDINGTON FREQUENCY 117.1 CH 118X AFFECTED BY ENVIRONMENTAL ISSUES,POTENTIAL UNLOCKS AND EXCESSIVE BEARING ERRORS WITHIN AREAS 010-075,190-205 AND 265-330 DEG.POTENTIAL DISTANCE MEASURING EQUIPMENT ERRORS UP TO 0.5NM IN SECTOR 195-200 DEG.MAY ENCOUNTER MINOR UNLOCKS BTN INSTRUMENT APPROACH FIX AND FINAL APPROACH FIX FOR TAC TO ILS / DISTANCE MEASURING EQUIPMENT RUNWAY 20. |
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