| Significance | Code | Meaning |
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| 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 | 5225N | 52° 25' North' | | Centre Longitude | 00034E | 0° 34' East | | Radius of area affected | 005 | 5 nautical miles |
| | RFFS CAPABILITY DOWNGRADED TO 3 VEHICLES WITH 6500 GALLONS AGENT AVAILABLE.CRITICAL LEVEL OF SERVICE FOR CATEGORY 10 AIRCRAFTS,REDUCED LEVEL OF SERVICE FOR CATEGORY 9 AND CATEGORY 8 AIRCRAFTS. |
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