| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | SE | Flight information service (FIS) | | | CF | operating frequency(ies) changed | | | / | | | 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 | 100 | 10000 feet QNE | | | / | | | Centre Latitude | 5034N | 50° 34' North' | | Centre Longitude | 00227W | 2° 27' West | | Radius of area affected | 040 | 40 nautical miles |
| | PLYMOUTH MILITARY ( EAST ) LOWER AIRSPACE RADAR SERVICE ( LARS ) FREQUENCY 124.150MHZ CHANGED TO 8.33KHZ CHANNEL 124.155 UK AERONAUTICAL INFORMATION PUBLICATION ENR 1.6,ENR 1.8,ENR 5.1,ENR 5.2,ENR 6 REFERS |
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