| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AE | Control area (CTA) | | | 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 | 060 | 6000 feet QNE | | | / | | | Centre Latitude | 5432N | 54° 32' North' | | Centre Longitude | 00123W | 1° 23' West | | Radius of area affected | 012 | 12 nautical miles |
| | TEESSIDE INTERNATIONAL CONTROL AREA / CTR / AIR TRAFFIC ZONE ACTIVATED.AERODROME / AIR TRAFFIC SERVICES OPERATING HOURS EXTENDED.PRIOR PERMISSION REQUIRED ONLY. |
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