| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AE | Control area (CTA) | | | CD | deactivated | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR 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 | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 105 | 10500 feet QNE | | | / | | | Centre Latitude | 5122N | 51° 22' North' | | Centre Longitude | 00234W | 2° 34' West | | Radius of area affected | 021 | 21 nautical miles |
| | BRISTOL CONTROL AREA,CTR AND AIR TRAFFIC ZONE DEACTIVATED,AIRSPACE REVERTS TO CLASS G.AIR TRAFFIC SERVICES NOT AVAILABLE AND FREQUENCY NOT MONITORED.IN THE EVENT OF AN EMERGENCY CONTACT BRISTOL AIRPORT CONTROL CENTRE 01275 473400 |
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