| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AE | Control area (CTA) | | | 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 | 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 DEACTIVATED.AERODROME CLOSED.AIRSPACE REVERTS TO CLASS G.AIR TRAFFIC SERVICES NOT AVAILABLE DUE MANDATED CONTROLLER BREAKS.HELIMED MAY STILL OPERATING FROM THE HEL EMERG SERVICES BASES.PILOTS TRANSITTING THE AREA ARE ADVISED TO MONITOR 119.805MHZ.TIMES MAY BE SUBJECT TO SHORT NOTICE CHANGE.ALL DEPARTURE MUST BE AIRBORNE 10 MIN BEFORE CLOSURE. |
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