| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | FF | Fire fighting and rescue | | | XX | miscellaneous plain language | | | / | | | 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 | 5154N | 51° 54' North' | | Centre Longitude | 00210W | 2° 10' West | | Radius of area affected | 005 | 5 nautical miles |
| | RESCUE AND FIRE FIGHTING SERVICES-AMEND RFFS CATEGORY TO READ : RFFS CATEGORY 4.CATEGORY 5 AVAILABLE ON REQUEST.UK AERONAUTICAL INFORMATION PUBLICATION AERODROME 2.6-1 REFERS. |
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