| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | FF | Fire fighting and rescue | | | CG | downgraded | | | / | | | 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 | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5141N | 51° 41' North' | | Centre Longitude | 00147W | 1° 47' West | | Radius of area affected | 005 | 5 nautical miles |
| | RFFS DOWNGRADED TO REDUCE LEVEL OF SERVICE FOR C-17,C-5,B-1,B-2,B-52,KC-135,MD-11 AND B747.REDU CED LEVEL OF SERVICE PROVIDES SUFFICIENT CAPABILITY FOR INITIAL RESPONSE,SCENE ASSESSMENT AND IMPLEMENTATION OF MITIGATION TACTICS.REDUCED LEVEL OF SERVICE REPRESENTS INCREASED RISK / LOSS POTENTIAL DUE TO LACK OF EMERGENCY RESPONSE CAPABILITY TO PERFORM RESCUE AND SUFFICIENT MITIGATION TACTICS SIMULTANEOUSLY.OBJECTIVES MAY NOT BE SUCCESSFUL DURING SITUATIONS WHERE SIMULTANEOUS RESCUE AND FIREFIGHTING ACTIVITIES ARE REQUIRED. |
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