| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | FA | Aerodrome | | | 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 | 5153N | 51° 53' North' | | Centre Longitude | 00014E | 0° 14' East | | Radius of area affected | 005 | 5 nautical miles |
| | AIRPORT COLLABORATIVE DECISION MAKING ( ACDM ) CONNECTED WITH NETWORK MANAGEMENT OPERATIONS CENTRE.DEPARTURE PLANNING INFO MESSAGES WITH FLIGHT DATA WILL BE SENT TO OPERATIONAL NETWORK MANAGEMENT SYSTEM.FLIGHT CREWS ARE REQUIRED TO CONTACT AIR TRAFFIC CONTROL FOR DEPARTURE CLEARANCE WITHIN VALID TARGET OFF-BLOCKS TIME ( TOBT )-5 /+ 5 MINS.WHEN THE FLIGHT IS READY OUTSIDE THE TOBT WINDOW,FLIGHT CREW SHALL CONTACT THE GROUND HANDLER BEFORE.PUSH AND / OR START-UP WILL BE ALLOCATED BASED ON TARGET START APPROVAL TIME ( TSAT ) +/- 5 MINS .) |
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