| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AZ | Aerodrome traffic zone (ATZ) | | | CD | deactivated | | | / | | | 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 DEACTIVATED,AERODROME CLOSED,AIR TRAFFIC SERVICES NOT AVAILABLE.SAR FLIGHT MAY STILL OPERATE.NO ARR OR DEPARTURE LATER THAN CLOSING TIMES MINUS 15 MIN.INBOUND AIRCRAFT ARE REQUESTED TO ALLOW SUFFICIENT TIME TO RECIEVE AN AIR TRAFFIC CONTROL SERVICE AFTER AERODROME REOPENING. |
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