| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AZ | Aerodrome traffic zone (ATZ) | | | CA | activated | | | / | | | 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 | 022 | 2200 feet QNE | | | / | | | Centre Latitude | 5334N | 53° 34' North' | | Centre Longitude | 00021W | 0° 21' West | | Radius of area affected | 003 | 3 nautical miles |
| | HUMBERSIDE AIR TRAFFIC ZONE ACTIVATION,AIR TRAFFIC SERVICES AND AERODROME HOURS AS FOLLOWS : SAT 1740-1815 ( PRIOR PERMISSION REQUIRED ), 1945-2045 ( PRIOR PERMISSION REQUIRED ) SUN 0600-0630 ( PRIOR PERMISSION REQUIRED ), 0900-1530,1615-1800,2040-2135 ( PRIOR PERMISSION REQUIRED ). NO ARR OR DEPARTURE LATER THAN CLOSING TIMES MINUS 15 MINS.INBOUND AIRCRAFT ARE REQ TO ALLOW SUFFICIENT TIME TO RECEIVE AN AIR TRAFFIC SERVICES AFTER AERODROME REOPENING ) |
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