| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | ID | DME associated with ILS | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR 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 | 5154N | 51° 54' North' | | Centre Longitude | 00210W | 2° 10' West | | Radius of area affected | 005 | 5 nautical miles |
| | DISTANCE MEASURING EQUIPMENT I-GOS-AMEND TO READ : DISTANCE MEASURING EQUIPMENT RANGE ON RUNWAY 27 APPROACH IS LIMITED TO 9.5NM.DISTANCE MEASURING EQUIPMENT RANGE ON RUNWAY 27 ON THE EXTENDED CENTRELINE FROM 9.5NM TO 25NM IT IS UNUSABLE BELOW 1400FT.DISTANCE MEASURING EQUIPMENT RANGE ON RUNWAY 27 ON THE EXTENDED CENTRELINE BEYOND 25NM IT IS UNUSABLE BELOW 4000FT.UK AERONAUTICAL INFORMATION PUBLICATION AERODROME 2.19 REFERS. |
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