| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | CA | Air/ground | | | 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 | 060 | 6000 feet QNE | | | / | | | Centre Latitude | 5058N | 50° 58' North' | | Centre Longitude | 00239W | 2° 39' West | | Radius of area affected | 022 | 22 nautical miles |
| | MILITARY EXERCISE AND TRAINING AREAS AND AIR DEFENCE IDENTIFICATION ZONE-AIAA YEOVILTON YEOVILTON RADAR FREQUENCY CHANGED TO CH 127.355 UK AERONAUTICAL INFORMATION PUBLICATION ENR 5.2 REFERS |
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