| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | NV | VOR | | | 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 | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5129N | 51° 29' North' | | Centre Longitude | 00028W | 0° 28' West | | Radius of area affected | 025 | 25 nautical miles |
| | VOR / DISTANCE MEASURING EQUIPMENT LON / LONDON 113.60MHZ CH083X VOR PART.THERE MAY BE OBSERVATIONS OF DVOR BEARING FLUCTUATIONS WITHIN THE 125-160 DEG MAGNETIC SECTOR RADIALS FROM THE LONDON VOR / DISTANCE MEASURING EQUIPMENT STATION,DUE TO CRANE ACTIVITY IN THE VICINITY |
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